Answer:
The AP is 1, 11/2, 10, 29/2, 19, ....
Step-by-step explanation:
Let the first term be a and d be the common difference of the arithmetic progression.
ATQ, a+2d+a+6d=38, 2a+8d=38 and a+8d=37. Solving this, we will get a=1 and d=9/2. The AP is 1, 11/2, 10, 29/2, 19, ....
Hey!
We could rewrite the problem as:

Since we have a negative number, we could rewrite the fraction like this.

Let's simplify it...

Our answer would be:

Thanks!
-TetraFish
Answer:
Yes your numbers can form a proportion
Answer: maybe 20
Step-by-step explanation:
or find it out yourself