Silvio was running a race that had 4 parts. The total length of the race was 74.5 kilometers. The first part of the race is 15.5 kilometers long. The second and third parts are each 21.5 kilometers long. How many kilometers is the last part of the race? Let's think step by step and output the final answer after "####".
user
15.5 + (2 * 21.5) = <<15.5+(2*21.5)=58.5>>58.5 km
74.5 - 58.5 = <<74.5-58.5=16>>16 kilometers
The last part of the race is 16 kilometers.
#### 16
Silvio was running a race that had 4 parts. The total length of the race was 74.5 kilometers. The first part of the race is 15.5 kilometers long. The second and third parts are each 21.5 kilometers long. How many kilometers is the last part of the race?
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