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Finding the Fourth Proportional to 62,700.38, 86,532.60 and 35,837.78

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Solution

The fourth proportional to 62,700.38, 86,532.60 and 35,837.78 is: 49,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,700.38 : 86,532.60 = 35,837.78 : x
  2. Step 2: Convert to fraction form
    62,700.38/86,532.60 = 35,837.78/x
  3. Step 3: Cross multiply
    62,700.38x = 86,532.60 × 35,837.78
  4. Step 4: Simplify right side
    62,700.38x = 3,101,135,848.97
  5. Step 5: Solve for x
    x = 3,101,135,848.97/62,700.38
  6. Step 6: Final answer
    x = 49,459.61

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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.