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Finding the Fourth Proportional to 40,474.53, 60,711.80 and 10,892.43

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Solution

The fourth proportional to 40,474.53, 60,711.80 and 10,892.43 is: 16,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,474.53 : 60,711.80 = 10,892.43 : x
  2. Step 2: Convert to fraction form
    40,474.53/60,711.80 = 10,892.43/x
  3. Step 3: Cross multiply
    40,474.53x = 60,711.80 × 10,892.43
  4. Step 4: Simplify right side
    40,474.53x = 661,298,977.21
  5. Step 5: Solve for x
    x = 661,298,977.21/40,474.53
  6. Step 6: Final answer
    x = 16,338.65

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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.