To solve this question, we only need to do a rule of 3:
if 1 lb is 0.4535 kg, x lb is 3.53 kg:
1 lb ---- 0.4535 kg
x lb ---- 3.53 kg
0.4535x = 3.53
x = 3.53/0.4535
x = 7.78 kg
Answer: There are 7.78 lb in 3.53 kg.
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