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Finding the Fourth Proportional to 42,469.46, 63,700.52 and 14,388.92

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Solution

The fourth proportional to 42,469.46, 63,700.52 and 14,388.92 is: 21,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,469.46 : 63,700.52 = 14,388.92 : x
  2. Step 2: Convert to fraction form
    42,469.46/63,700.52 = 14,388.92/x
  3. Step 3: Cross multiply
    42,469.46x = 63,700.52 × 14,388.92
  4. Step 4: Simplify right side
    42,469.46x = 916,581,295.79
  5. Step 5: Solve for x
    x = 916,581,295.79/42,469.46
  6. Step 6: Final answer
    x = 21,582.13

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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.