The phrase "at that proportion" is correct and usable in written English.
It can be used when discussing ratios, comparisons, or relationships between quantities or elements.
Example: "The ingredients should be mixed at that proportion to achieve the desired flavor."
Alternatives: "in that ratio" or "at that rate".
They can create perverse incentives: HUD's vouchers work on the basis that you should spend 30% of your income on rent, but if your rent is pegged at that proportion, there is less incentive to try to get a pay rise.
It has remained at that proportion through the introduction of sound, of 3D, and stadium seating, and despite the emergence of threats like television, home video, computer games and the internet because, for the most part, it has worked.
The consequences of sea level rise at that proportion would be "horrible," the study's co-author told NBC News.
While 7 per cent of males across the whole adult population are estimated to be "at risk", that proportion more than doubles to 16 per cent among men aged 16 to 24.
At present, that proportion is 59.3%.
Private businesses generally devote at least three times that proportion of their turnover to IT, and 2% seems to be in line with what the governments of other developed nations spend.
Today, that proportion is at most 2%."Grain" is a term that also needs careful definition, adds Mr Lu.
"When you look at the proportion that are diagnosed versus undiagnosed, that's gone up dramatically.
The sampling of sea turtle populations generally occurs at rookeries for that proportion of reproductive females nesting in a given year.
Yet this is a victory over the All Blacks we're talking about – something that has always been as rare as rocking-horse manure – and a victory of unprecedented proportions at that.
Previously less than 60% of its products were sold at full price; that proportion has risen to 70%, helping UK sales growth more than double in the seven months to 10 October to 3.8%.
