Final answer:
To make 19.37 equal to triple of 11.3, 14.53 is needed.
Step-by-step explanation:
To find out how much is needed to make 19.37 equal to triple of 11.3, subtract the triple of 11.3 from 19.37.
Triple of 11.3 is 33.9 (11.3 x 3 = 33.9).
Therefore, 19.37 - 33.9 = -14.53. So, 14.53 is needed for 19.37 to be equal to triple of 11.3.
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