Question

what is 2/a = a/50. These are factions if you already didn't know. I need to know what the answer is. it is a proportion.

Answer 1

2/a= a/50

Cross multiply:
a* a= 2*50
⇒ a^2= 100
⇒ a= √100 or a= -√100
⇒ a= 10 or a= -10

Final answer: a= 10 or a= -10~