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Finding the Fourth Proportional to 40,932.60, 61,398.90 and 40,414.20

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Solution

The fourth proportional to 40,932.60, 61,398.90 and 40,414.20 is: 60,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,932.60 : 61,398.90 = 40,414.20 : x
  2. Step 2: Convert to fraction form
    40,932.60/61,398.90 = 40,414.20/x
  3. Step 3: Cross multiply
    40,932.60x = 61,398.90 × 40,414.20
  4. Step 4: Simplify right side
    40,932.60x = 2,481,387,424.38
  5. Step 5: Solve for x
    x = 2,481,387,424.38/40,932.60
  6. Step 6: Final answer
    x = 60,621.30

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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.