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Finding the Fourth Proportional to 49,513.88, 68,327.96 and 28,291.88

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Solution

The fourth proportional to 49,513.88, 68,327.96 and 28,291.88 is: 39,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,513.88 : 68,327.96 = 28,291.88 : x
  2. Step 2: Convert to fraction form
    49,513.88/68,327.96 = 28,291.88/x
  3. Step 3: Cross multiply
    49,513.88x = 68,327.96 × 28,291.88
  4. Step 4: Simplify right side
    49,513.88x = 1,933,126,474.33
  5. Step 5: Solve for x
    x = 1,933,126,474.33/49,513.88
  6. Step 6: Final answer
    x = 39,042.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.