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Finding the Fourth Proportional to 42,544.65, 63,785.65 and 14,457.13

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Solution

The fourth proportional to 42,544.65, 63,785.65 and 14,457.13 is: 21,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,544.65 : 63,785.65 = 14,457.13 : x
  2. Step 2: Convert to fraction form
    42,544.65/63,785.65 = 14,457.13/x
  3. Step 3: Cross multiply
    42,544.65x = 63,785.65 × 14,457.13
  4. Step 4: Simplify right side
    42,544.65x = 922,157,434.18
  5. Step 5: Solve for x
    x = 922,157,434.18/42,544.65
  6. Step 6: Final answer
    x = 21,675.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.