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12:X = 26:221 ... How do u do proportions correctly ?? I don't get it. Help me Plz?
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1 vote
12:X = 26:221 ... How do u do proportions correctly ?? I don't get it. Help me Plz?

User TimNguyenBSM
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1 Answer

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(12)/(x)=(26)/(221) \ \ \ |cross\ multiply \\ 26x=12 * 221 \\ 26x=2652 \ \ \ |/ 26 \\ x=102
User Gianluca Ghettini
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