Question

Determine whether 6, 9, 10, 15 are in proportion or not.
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Answer 1

Answer:

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Answer 2

Step-by-step explanation:

To find out if

6

:

9

=

10

:

15

6

9

and

10

15

←

cross- multiply

6

×

15

=

9

×

10

90

=

90

Therefore the ratios are equal and form a proportion.

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OR

Change each ratio to its simplest form:

6

÷

3

9

÷

3

and

10

÷

5

15

÷

5

2

3

=

2

3