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Finding the Fourth Proportional to 47,073.52, 70,620.78 and 15,907.96

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Solution

The fourth proportional to 47,073.52, 70,620.78 and 15,907.96 is: 23,865.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,073.52 : 70,620.78 = 15,907.96 : x
  2. Step 2: Convert to fraction form
    47,073.52/70,620.78 = 15,907.96/x
  3. Step 3: Cross multiply
    47,073.52x = 70,620.78 × 15,907.96
  4. Step 4: Simplify right side
    47,073.52x = 1,123,432,543.41
  5. Step 5: Solve for x
    x = 1,123,432,543.41/47,073.52
  6. Step 6: Final answer
    x = 23,865.49

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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.