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Finding the Fourth Proportional to 62,480.70, 93,721.05 and 55,591.65

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Solution

The fourth proportional to 62,480.70, 93,721.05 and 55,591.65 is: 83,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,480.70 : 93,721.05 = 55,591.65 : x
  2. Step 2: Convert to fraction form
    62,480.70/93,721.05 = 55,591.65/x
  3. Step 3: Cross multiply
    62,480.70x = 93,721.05 × 55,591.65
  4. Step 4: Simplify right side
    62,480.70x = 5,210,107,809.23
  5. Step 5: Solve for x
    x = 5,210,107,809.23/62,480.70
  6. Step 6: Final answer
    x = 83,387.48

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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.