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Finding the Fourth Proportional to 47,793.10, 71,591.10 and 28,011.70

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Solution

The fourth proportional to 47,793.10, 71,591.10 and 28,011.70 is: 41,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,793.10 : 71,591.10 = 28,011.70 : x
  2. Step 2: Convert to fraction form
    47,793.10/71,591.10 = 28,011.70/x
  3. Step 3: Cross multiply
    47,793.10x = 71,591.10 × 28,011.70
  4. Step 4: Simplify right side
    47,793.10x = 2,005,388,415.87
  5. Step 5: Solve for x
    x = 2,005,388,415.87/47,793.10
  6. Step 6: Final answer
    x = 41,959.79

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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.