Solving a proportion with an unknown variable (example) | 7th grade | Khan Academy
7:20
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Solving a proportion with an unknown variable (example) | 7th grade | Khan Academy
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-write-and-solve-proportions/v/find-an-unknown-in-a-proportion Here's a great video where we explain the reasoning behind solving proportions. We'll put some ...
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Jump to key moments of Khan Academy Maths Grade 7

Setting up proportions to solve word problems | 7th grade | Khan Academy
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Setting up proportions to solve word problems | 7th grade | Khan Academy
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