Determine if the following are in proportion.
(a) 15, 45, 40, 120
(b) 33, 121, 9,96
(c) 24, 28, 36, 48
(d) 32, 48, 70, 210
(e) 4, 6, 8, 12
(f) 33, 44, 75, 100
Solution (a) 15, 45, 40, 120
. Therefore, ratios are in proportion.
Solution (b) 33, 121, 9,96
. Therefore, ratios are not in proportion.
Solution (c) 24, 28, 36, 48
. Therefore, ratios are not in proportion.
Solution (d) 32, 48, 70, 210
. Therefore, ratios are not in proportion.
Solution (e) 4, 6, 8, 12
. Therefore, ratios are in proportion.
Solution (f) 33, 44, 75, 100
. Therefore, ratios are in proportion.
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