The phrase "also a significant proportion" is correct and usable in written English.
It can be used when discussing the extent or amount of something in relation to another factor or group.
Example: "In addition to the main findings, the survey revealed that there is also a significant proportion of respondents who prefer online shopping."
Alternatives: "also a considerable share" or "additionally a notable percentage".
However, there was also a significant proportion of the community who criticised Caroline Wilson for "bringing it on herself", due to the robustness of her particular style of journalism.
There are also a significant proportion of patients who had anterior uveitis.
Also, a significant proportion of ER+ tumors fails to respond to some or all hormone treatments [1, 7].
There is also a significant proportion of acyclic compounds, which are represented here by a single carbon atom.
Also, a significant proportion of generated products contained the YMVH motif of high propensity for β-sheet conversion.
There are also a significant proportion of patients who acquire drug resistant disease because they live in an environment with a high prevalence of drug resistant disease.
They should also channel a significant proportion of this funding through the Adaptation Fund, which has proven to be an efficient and well-governed mechanism.
And while people on the spectrum range vastly in abilities and competencies, with few showing an aptitude for maths, it seems also that a significant proportion of people who are exceptionally good at maths have a higher than average number of autistic traits – a point made by the scholar of autism Simon Baron Cohen in Beautiful Young Minds.
When properly maintained and used under standardized conditions, these perceptual-motor devices provide reliable measures of the activities they are designed to measure, and they also tap a significant proportion of the abilities required in real-life situations.
The macro cell also consumes a significant proportion of the total energy consumed by the RAN.
However, the Han also comprise a significant proportion of these regions' populations3.
