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Finding the Fourth Proportional to 62,839.06, 86,717.92 and 35,990.48

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Solution

The fourth proportional to 62,839.06, 86,717.92 and 35,990.48 is: 49,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,839.06 : 86,717.92 = 35,990.48 : x
  2. Step 2: Convert to fraction form
    62,839.06/86,717.92 = 35,990.48/x
  3. Step 3: Cross multiply
    62,839.06x = 86,717.92 × 35,990.48
  4. Step 4: Simplify right side
    62,839.06x = 3,121,019,565.40
  5. Step 5: Solve for x
    x = 3,121,019,565.40/62,839.06
  6. Step 6: Final answer
    x = 49,666.87

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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.