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Finding the Fourth Proportional to 6,472.80, 9,704.34 and 4,003.92

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Solution

The fourth proportional to 6,472.80, 9,704.34 and 4,003.92 is: 6,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.80 : 9,704.34 = 4,003.92 : x
  2. Step 2: Convert to fraction form
    6,472.80/9,704.34 = 4,003.92/x
  3. Step 3: Cross multiply
    6,472.80x = 9,704.34 × 4,003.92
  4. Step 4: Simplify right side
    6,472.80x = 38,855,401.01
  5. Step 5: Solve for x
    x = 38,855,401.01/6,472.80
  6. Step 6: Final answer
    x = 6,002.87

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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.