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Finding the Fourth Proportional to 63,909.80, 95,863.80 and 28,849.40

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Solution

The fourth proportional to 63,909.80, 95,863.80 and 28,849.40 is: 43,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,909.80 : 95,863.80 = 28,849.40 : x
  2. Step 2: Convert to fraction form
    63,909.80/95,863.80 = 28,849.40/x
  3. Step 3: Cross multiply
    63,909.80x = 95,863.80 × 28,849.40
  4. Step 4: Simplify right side
    63,909.80x = 2,765,613,111.72
  5. Step 5: Solve for x
    x = 2,765,613,111.72/63,909.80
  6. Step 6: Final answer
    x = 43,273.69

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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.