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Finding the Fourth Proportional to 63,312.64, 87,385.94 and 36,470.68

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Solution

The fourth proportional to 63,312.64, 87,385.94 and 36,470.68 is: 50,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,312.64 : 87,385.94 = 36,470.68 : x
  2. Step 2: Convert to fraction form
    63,312.64/87,385.94 = 36,470.68/x
  3. Step 3: Cross multiply
    63,312.64x = 87,385.94 × 36,470.68
  4. Step 4: Simplify right side
    63,312.64x = 3,187,024,654.24
  5. Step 5: Solve for x
    x = 3,187,024,654.24/63,312.64
  6. Step 6: Final answer
    x = 50,337.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.