Based on the equation used, the number of crates that must be sold in order to realize the profit is 763 crates.
Let the number of crates be represented by x.
Based on the information given, the equation to solve the question will be:
(34.24 × x) - (7312 + 9.86x) = 11300
34.24x - 7312 - 9.86x = 11300
34.24x - 9.86x = 11300 + 7312
24.38x = 18612
x = 18612 / 24.38
x = 763
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