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Finding the Fourth Proportional to 62,881.28, 86,788.49 and 36,041.78

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Solution

The fourth proportional to 62,881.28, 86,788.49 and 36,041.78 is: 49,744.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.28 : 86,788.49 = 36,041.78 : x
  2. Step 2: Convert to fraction form
    62,881.28/86,788.49 = 36,041.78/x
  3. Step 3: Cross multiply
    62,881.28x = 86,788.49 × 36,041.78
  4. Step 4: Simplify right side
    62,881.28x = 3,128,011,663.11
  5. Step 5: Solve for x
    x = 3,128,011,663.11/62,881.28
  6. Step 6: Final answer
    x = 49,744.72

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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.