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Finding the Fourth Proportional to 62,909.53, 86,817.54 and 36,057.22

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Solution

The fourth proportional to 62,909.53, 86,817.54 and 36,057.22 is: 49,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,909.53 : 86,817.54 = 36,057.22 : x
  2. Step 2: Convert to fraction form
    62,909.53/86,817.54 = 36,057.22/x
  3. Step 3: Cross multiply
    62,909.53x = 86,817.54 × 36,057.22
  4. Step 4: Simplify right side
    62,909.53x = 3,130,399,139.64
  5. Step 5: Solve for x
    x = 3,130,399,139.64/62,909.53
  6. Step 6: Final answer
    x = 49,760.33

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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.