Question
Show that $36, 49, 6, 7$ are not in proportion.
✓
Answer
We know that if $a, b, c, d$ are in proportion if $ad = bc$
Now $36, 49, 6, 7$ are in proportion
if $36 \times 7 = 49 \times 6$
if $252 = 294$
But $252 \neq 294$
$36, 49, 6, 7$ are not in proportion.
Now $36, 49, 6, 7$ are in proportion
if $36 \times 7 = 49 \times 6$
if $252 = 294$
But $252 \neq 294$
$36, 49, 6, 7$ are not in proportion.
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