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Finding the Fourth Proportional to 63,890.92, 95,842.14 and 17,143.48

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Solution

The fourth proportional to 63,890.92, 95,842.14 and 17,143.48 is: 25,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,890.92 : 95,842.14 = 17,143.48 : x
  2. Step 2: Convert to fraction form
    63,890.92/95,842.14 = 17,143.48/x
  3. Step 3: Cross multiply
    63,890.92x = 95,842.14 × 17,143.48
  4. Step 4: Simplify right side
    63,890.92x = 1,643,067,810.25
  5. Step 5: Solve for x
    x = 1,643,067,810.25/63,890.92
  6. Step 6: Final answer
    x = 25,716.77

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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.