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Finding the Fourth Proportional to 62,491.20, 86,237.84 and 34,196.88

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Solution

The fourth proportional to 62,491.20, 86,237.84 and 34,196.88 is: 47,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,491.20 : 86,237.84 = 34,196.88 : x
  2. Step 2: Convert to fraction form
    62,491.20/86,237.84 = 34,196.88/x
  3. Step 3: Cross multiply
    62,491.20x = 86,237.84 × 34,196.88
  4. Step 4: Simplify right side
    62,491.20x = 2,949,065,065.94
  5. Step 5: Solve for x
    x = 2,949,065,065.94/62,491.20
  6. Step 6: Final answer
    x = 47,191.69

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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.