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How do you do proportions

The ratio between the cost of the markers to the number of markers you're buying, 11.50 to 9, is equal to the ratio of the cost of 7 markers to the number of markers, which is obviously 7. So

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How to Solve a Proportion

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7 Ways to Solve Proportions

A percent is actually a ratio! Saying 25% is actually saying 25 per 100: 25% = 25 100. We can use proportions to solve questions involving percents. The trick is to put what we know into