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Finding the Fourth Proportional to 63,443.99, 95,174.19 and 21,305.97

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Solution

The fourth proportional to 63,443.99, 95,174.19 and 21,305.97 is: 31,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,443.99 : 95,174.19 = 21,305.97 : x
  2. Step 2: Convert to fraction form
    63,443.99/95,174.19 = 21,305.97/x
  3. Step 3: Cross multiply
    63,443.99x = 95,174.19 × 21,305.97
  4. Step 4: Simplify right side
    63,443.99x = 2,027,778,436.91
  5. Step 5: Solve for x
    x = 2,027,778,436.91/63,443.99
  6. Step 6: Final answer
    x = 31,961.71

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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.