Solve the following word problems involving multiplication and division:

To find the number Ryan multiplied by 3 to get 69, we divide 69 by 3.

$$69 \div 3 = 23$$

The number was 23.
Multiplication:

$$23 \times 3 = \boxed{69}$$

To find the number Abby multiplied by 4 to get 128, we divide 128 by 4.

$$128 \div 4 = 32$$

The number was 32.
Multiplication:

$$32 \times 4 = \boxed{128}$$

To find the number Kamil multiplied by 8 to get 152, we divide 152 by 8.

$$152 \div 8 = 19$$

The number was 19.
Multiplication:

$$19 \times 8 = \boxed{152}$$

We need to find a number that, when divided by 3, gives 15.
To do this, we multiply 15 by 3.

$$15 \times 3 = 45$$

So, the division is:

$$45 \div 3 = \boxed{15}$$

We need to find a number that, when divided by 5, gives 15.
To do this, we multiply 15 by 5.

$$15 \times 5 = 75$$

So, the division is:

$$75 \div 5 = \boxed{15}$$

We need to find a number that, when divided by 4, gives 15.
To do this, we multiply 15 by 4.

$$15 \times 4 = 60$$

So, the division is:

$$60 \div 4 = \boxed{15}$$

We need to find a number that, when divided by 8, gives 15.
To do this, we multiply 15 by 8.

$$15 \times 8 = 120$$

So, the division is:

$$120 \div 8 = \boxed{15}$$