Simplify the following: 223523+14-334
223523+14-334⇒83173+14-154⇒8317×4+1×3-15×312⇒8368+3-4512⇒8371-4512⇒832612⇒83×2612⇒529
Determine whether the following numbers are in proportion or not:
13,14,16,17