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Mathematics 21 Online
OpenStudy (anonymous):

please check proportion work 16.8/84 13.2/? ?=5

OpenStudy (anonymous):

\[\frac{ 16.8 }{ 84 } = \frac{ 13.2 }{ x } \] \[16.8x = 1108.8 \div 16.8 = 66\]

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