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Finding the Fourth Proportional to 71,424.97, 98,559.83 and 39,591.16

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Solution

The fourth proportional to 71,424.97, 98,559.83 and 39,591.16 is: 54,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,424.97 : 98,559.83 = 39,591.16 : x
  2. Step 2: Convert to fraction form
    71,424.97/98,559.83 = 39,591.16/x
  3. Step 3: Cross multiply
    71,424.97x = 98,559.83 × 39,591.16
  4. Step 4: Simplify right side
    71,424.97x = 3,902,098,344.48
  5. Step 5: Solve for x
    x = 3,902,098,344.48/71,424.97
  6. Step 6: Final answer
    x = 54,632.13

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1.5x scale

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.