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Finding the Fourth Proportional to 62,470.72, 93,640.80 and 27,380.80

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Solution

The fourth proportional to 62,470.72, 93,640.80 and 27,380.80 is: 41,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,470.72 : 93,640.80 = 27,380.80 : x
  2. Step 2: Convert to fraction form
    62,470.72/93,640.80 = 27,380.80/x
  3. Step 3: Cross multiply
    62,470.72x = 93,640.80 × 27,380.80
  4. Step 4: Simplify right side
    62,470.72x = 2,563,960,016.64
  5. Step 5: Solve for x
    x = 2,563,960,016.64/62,470.72
  6. Step 6: Final answer
    x = 41,042.59

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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.