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Finding the Fourth Proportional to 9,712.91, 14,572.42 and 3,472.78

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Solution

The fourth proportional to 9,712.91, 14,572.42 and 3,472.78 is: 5,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,712.91 : 14,572.42 = 3,472.78 : x
  2. Step 2: Convert to fraction form
    9,712.91/14,572.42 = 3,472.78/x
  3. Step 3: Cross multiply
    9,712.91x = 14,572.42 × 3,472.78
  4. Step 4: Simplify right side
    9,712.91x = 50,606,808.73
  5. Step 5: Solve for x
    x = 50,606,808.73/9,712.91
  6. Step 6: Final answer
    x = 5,210.26

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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.