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Finding the Fourth Proportional to 62,691.80, 86,515.48 and 34,011.65

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Solution

The fourth proportional to 62,691.80, 86,515.48 and 34,011.65 is: 46,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,691.80 : 86,515.48 = 34,011.65 : x
  2. Step 2: Convert to fraction form
    62,691.80/86,515.48 = 34,011.65/x
  3. Step 3: Cross multiply
    62,691.80x = 86,515.48 × 34,011.65
  4. Step 4: Simplify right side
    62,691.80x = 2,942,533,949.67
  5. Step 5: Solve for x
    x = 2,942,533,949.67/62,691.80
  6. Step 6: Final answer
    x = 46,936.51

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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.