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Finding the Fourth Proportional to 29,154.80, 43,732.20 and 13,359.80

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Solution

The fourth proportional to 29,154.80, 43,732.20 and 13,359.80 is: 20,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,154.80 : 43,732.20 = 13,359.80 : x
  2. Step 2: Convert to fraction form
    29,154.80/43,732.20 = 13,359.80/x
  3. Step 3: Cross multiply
    29,154.80x = 43,732.20 × 13,359.80
  4. Step 4: Simplify right side
    29,154.80x = 584,253,445.56
  5. Step 5: Solve for x
    x = 584,253,445.56/29,154.80
  6. Step 6: Final answer
    x = 20,039.70

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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.