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Finding the Fourth Proportional to 62,721.88, 94,091.16 and 33,140.88

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Solution

The fourth proportional to 62,721.88, 94,091.16 and 33,140.88 is: 49,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,721.88 : 94,091.16 = 33,140.88 : x
  2. Step 2: Convert to fraction form
    62,721.88/94,091.16 = 33,140.88/x
  3. Step 3: Cross multiply
    62,721.88x = 94,091.16 × 33,140.88
  4. Step 4: Simplify right side
    62,721.88x = 3,118,263,842.62
  5. Step 5: Solve for x
    x = 3,118,263,842.62/62,721.88
  6. Step 6: Final answer
    x = 49,715.73

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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.