bradfmad000 bradfmad000 31-10-2017 Mathematics contestada 20 points and brainliest to the fastest, right answer! Please answer ASAP: Use cross products to determine which of the following proportions are equivalent to each other. Select all situations that apply. a/b=c/d a/c=b/d a/d=c/b b/a=d/c d/a=c/b