<human>:  Charlie has three times as many Facebook friends as Dorothy. James has four times as many friends on Facebook as Dorothy. If Charlie has 12 friends on Facebook, how many Facebook friends does James have?
<bot>: How many friends does Dorothy have on Facebook? ** Dorothy has 12 / 3 = <<12/3=4>>4 Facebook friends.
How many friends does James have on Facebook? ** James has 4 * 4 = <<4*4=16>>16 Facebook friends.
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