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Finding the Fourth Proportional to 86,593.98, 129,791.88 and 39,245.16

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Solution

The fourth proportional to 86,593.98, 129,791.88 and 39,245.16 is: 58,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,593.98 : 129,791.88 = 39,245.16 : x
  2. Step 2: Convert to fraction form
    86,593.98/129,791.88 = 39,245.16/x
  3. Step 3: Cross multiply
    86,593.98x = 129,791.88 × 39,245.16
  4. Step 4: Simplify right side
    86,593.98x = 5,093,703,097.30
  5. Step 5: Solve for x
    x = 5,093,703,097.30/86,593.98
  6. Step 6: Final answer
    x = 58,822.83

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1.5x scale

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.