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Finding the Fourth Proportional to 47,676.52, 71,534.22 and 38,403.64

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Solution

The fourth proportional to 47,676.52, 71,534.22 and 38,403.64 is: 57,621.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,676.52 : 71,534.22 = 38,403.64 : x
  2. Step 2: Convert to fraction form
    47,676.52/71,534.22 = 38,403.64/x
  3. Step 3: Cross multiply
    47,676.52x = 71,534.22 × 38,403.64
  4. Step 4: Simplify right side
    47,676.52x = 2,747,174,432.56
  5. Step 5: Solve for x
    x = 2,747,174,432.56/47,676.52
  6. Step 6: Final answer
    x = 57,621.12

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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.