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Finding the Fourth Proportional to 10,472.04, 15,704.04 and 4,229.88

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Solution

The fourth proportional to 10,472.04, 15,704.04 and 4,229.88 is: 6,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.04 : 15,704.04 = 4,229.88 : x
  2. Step 2: Convert to fraction form
    10,472.04/15,704.04 = 4,229.88/x
  3. Step 3: Cross multiply
    10,472.04x = 15,704.04 × 4,229.88
  4. Step 4: Simplify right side
    10,472.04x = 66,426,204.72
  5. Step 5: Solve for x
    x = 66,426,204.72/10,472.04
  6. Step 6: Final answer
    x = 6,343.20

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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.