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Finding the Fourth Proportional to 62,540, 86,305.20 and 34,246.72

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Solution

The fourth proportional to 62,540, 86,305.20 and 34,246.72 is: 47,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,540 : 86,305.20 = 34,246.72 : x
  2. Step 2: Convert to fraction form
    62,540/86,305.20 = 34,246.72/x
  3. Step 3: Cross multiply
    62,540x = 86,305.20 × 34,246.72
  4. Step 4: Simplify right side
    62,540x = 2,955,670,018.94
  5. Step 5: Solve for x
    x = 2,955,670,018.94/62,540
  6. Step 6: Final answer
    x = 47,260.47

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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.