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Discover LudwigSuggestions(5)
The phrase "a certain proportion of" is correct and usable in written English.
It can be used when discussing a specific but unspecified fraction or percentage of a whole in various contexts, such as statistics, research, or general observations.
Example: "A certain proportion of the participants reported feeling more energized after the workshop."
Alternatives: "a specific percentage of" or "a particular fraction of".
Exact(60)
However, a certain proportion of polyps resolve with conservative treatment.
The government requires a certain proportion of UK electricity to come from renewable sources.
Culling involves removing a certain proportion of a population, but is based on concrete population numbers.
A certain proportion of SMS messages appear not to be received by the Galaxy S8.
In addition, a certain proportion of arable fields and grassland can be managed less intensively.
This potentially could lead to added predictability for a certain proportion of monsoon rainfall variability.
We all know that there's a certain proportion of the electorate that's not going to support Obama because he's black.
In a certain proportion of women who use it, men just seem to find them more attractive.
So the argument that we are "meant" to eat a certain proportion of meat, say, is highly questionable.
Heat loss from the kiln shell accounts for a certain proportion of total energy input in a rotary kiln.
Heat loss from the shell of a rotary kiln accounts for a certain proportion of total energy consumption.
More suggestions(25)
a certain proportion of power
a proportion of habitual
a certain proportion of advanced
a certain proportion of customers
a certain proportion of women
adding a certain proportion of
a certain proportion of energy
account for a certain proportion of
a certain proportion of students
a certain proportion of people
for a certain proportion of total
for a certain proportion of
in a certain tranche of
a reasonable proportion of
a certain population of
a certain extent of
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a reliable proportion of
a slight proportion of
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a real proportion of
a precise proportion of
a definite proportion of
a prescribed proportion of
a true proportion of
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com