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Finding the Fourth Proportional to 62,881.71, 94,334.20 and 20,764.71

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Solution

The fourth proportional to 62,881.71, 94,334.20 and 20,764.71 is: 31,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.71 : 94,334.20 = 20,764.71 : x
  2. Step 2: Convert to fraction form
    62,881.71/94,334.20 = 20,764.71/x
  3. Step 3: Cross multiply
    62,881.71x = 94,334.20 × 20,764.71
  4. Step 4: Simplify right side
    62,881.71x = 1,958,822,306.08
  5. Step 5: Solve for x
    x = 1,958,822,306.08/62,881.71
  6. Step 6: Final answer
    x = 31,150.91

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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.