Question
Determine if the following numbers are in proportion: $33, 121, 9, 96$
✓
Answer
$33, 121, 9, 96$ or $33 : 121 :: 9 : 96$ Are in proportion If $ad = bc$
If $33 \times 96 = 121 \times 9$ If $3168 = 1089$
Which is not true $\therefore 33, 121,9, 96$ are not in proportion
If $33 \times 96 = 121 \times 9$ If $3168 = 1089$
Which is not true $\therefore 33, 121,9, 96$ are not in proportion
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