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Solve the proportion 4/5=28/x using two methods

Solve the proportion 4/5=28/x using two methods
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5 votes
Solve the proportion 4/5=28/x using two methods

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User Aparan
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(4)/(5)=(28)/(x)\ \ \ \ |multiply\ by\ x\ each\ side\\\\ (4)/(5)x=28\ \ \ \ |Multiply\ by\ 5\ each\ side\\\\ 4x=140\ \ \ |:4\\\\ x=35\\\\\\ Cross\ multiplication\ method:\\\\ 4x=28*5\\\\ 4x=140\ \ \ |:4\\\\ x=35
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User Shebeer
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