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Finding the Fourth Proportional to 47,672.38, 71,519.21 and 15,652.88

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Solution

The fourth proportional to 47,672.38, 71,519.21 and 15,652.88 is: 23,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,672.38 : 71,519.21 = 15,652.88 : x
  2. Step 2: Convert to fraction form
    47,672.38/71,519.21 = 15,652.88/x
  3. Step 3: Cross multiply
    47,672.38x = 71,519.21 × 15,652.88
  4. Step 4: Simplify right side
    47,672.38x = 1,119,481,533.56
  5. Step 5: Solve for x
    x = 1,119,481,533.56/47,672.38
  6. Step 6: Final answer
    x = 23,482.81

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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.