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Finding the Fourth Proportional to 62,909.59, 86,817.63 and 36,057.28

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Solution

The fourth proportional to 62,909.59, 86,817.63 and 36,057.28 is: 49,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,909.59 : 86,817.63 = 36,057.28 : x
  2. Step 2: Convert to fraction form
    62,909.59/86,817.63 = 36,057.28/x
  3. Step 3: Cross multiply
    62,909.59x = 86,817.63 × 36,057.28
  4. Step 4: Simplify right side
    62,909.59x = 3,130,407,593.85
  5. Step 5: Solve for x
    x = 3,130,407,593.85/62,909.59
  6. Step 6: Final answer
    x = 49,760.42

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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.