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Finding the Fourth Proportional to 39,174.13, 58,764.03 and 19,432.81

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Solution

The fourth proportional to 39,174.13, 58,764.03 and 19,432.81 is: 29,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,174.13 : 58,764.03 = 19,432.81 : x
  2. Step 2: Convert to fraction form
    39,174.13/58,764.03 = 19,432.81/x
  3. Step 3: Cross multiply
    39,174.13x = 58,764.03 × 19,432.81
  4. Step 4: Simplify right side
    39,174.13x = 1,141,950,229.82
  5. Step 5: Solve for x
    x = 1,141,950,229.82/39,174.13
  6. Step 6: Final answer
    x = 29,150.62

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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.