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Finding the Fourth Proportional to 40,932.60, 61,398.90 and 34,711.80

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Solution

The fourth proportional to 40,932.60, 61,398.90 and 34,711.80 is: 52,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,932.60 : 61,398.90 = 34,711.80 : x
  2. Step 2: Convert to fraction form
    40,932.60/61,398.90 = 34,711.80/x
  3. Step 3: Cross multiply
    40,932.60x = 61,398.90 × 34,711.80
  4. Step 4: Simplify right side
    40,932.60x = 2,131,266,337.02
  5. Step 5: Solve for x
    x = 2,131,266,337.02/40,932.60
  6. Step 6: Final answer
    x = 52,067.70

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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.