Ratios, Proportions & RatesATI TEAS 7 cheat sheet

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6 key facts Reviewed Oct 2026

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Proportions

Set two ratios equal, then cross-multiply
2/4 = x/6 → 4x = 12 → x = 3
Great for recipes, dosages, maps

Rates

Rate = amount ÷ time (or per unit)
Speed = distance ÷ time (180 mi ÷ 3 h = 60 mph)
Unit rate = per ONE (price per item)

Key takeaway

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Ratios, Proportions & RatesATI TEAS 7 cheat sheet

Proportions

Rates

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Know ratios, proportions & rates cold