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Finding the Fourth Proportional to 47,687.40, 71,531.10 and 24,359.40

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Solution

The fourth proportional to 47,687.40, 71,531.10 and 24,359.40 is: 36,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,687.40 : 71,531.10 = 24,359.40 : x
  2. Step 2: Convert to fraction form
    47,687.40/71,531.10 = 24,359.40/x
  3. Step 3: Cross multiply
    47,687.40x = 71,531.10 × 24,359.40
  4. Step 4: Simplify right side
    47,687.40x = 1,742,454,677.34
  5. Step 5: Solve for x
    x = 1,742,454,677.34/47,687.40
  6. Step 6: Final answer
    x = 36,539.10

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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.