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Finding the Fourth Proportional to 63,490.97, 87,575.65 and 40,794.17

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Solution

The fourth proportional to 63,490.97, 87,575.65 and 40,794.17 is: 56,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,490.97 : 87,575.65 = 40,794.17 : x
  2. Step 2: Convert to fraction form
    63,490.97/87,575.65 = 40,794.17/x
  3. Step 3: Cross multiply
    63,490.97x = 87,575.65 × 40,794.17
  4. Step 4: Simplify right side
    63,490.97x = 3,572,575,414.10
  5. Step 5: Solve for x
    x = 3,572,575,414.10/63,490.97
  6. Step 6: Final answer
    x = 56,269.03

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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.