Question

please answer both........... it's urgent ​

Answer 1

Answer:

7) 18

8) 45

Step-by-step explanation:

7)

9:x:36

=9:x::x:36

Product of means=product of extremes

so, x²=36×9

=> x²=324

=> x = √324

=> x = 18

answer= 9:18:36

8)

5:9::25:x

Product of means=product of extremes

so, 5×x=9×25

=> 5x = 225

=> x = 225/5

=> x = 45

answer = 5:9::25:45

Answer 2

Step-by-step explanation:

7.Given that 9:x:36

If they are in the continued proportion then

9:x::x:36

Product of means=x×x=x²

Product of extremes=9×36=324

=>Product of extremes=Product of means

=>x²=324

=>x²=18²

=>x=18

8.Given that

5:9::25:x

Product of means=9×25=225

Product of extremes=5×x=5x

=>Product of extremes=Product of means

=>5x=225

=>x=225/5

=>x=45