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Finding the Fourth Proportional to 62,712.75, 86,543.65 and 35,855.82

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Solution

The fourth proportional to 62,712.75, 86,543.65 and 35,855.82 is: 49,481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,712.75 : 86,543.65 = 35,855.82 : x
  2. Step 2: Convert to fraction form
    62,712.75/86,543.65 = 35,855.82/x
  3. Step 3: Cross multiply
    62,712.75x = 86,543.65 × 35,855.82
  4. Step 4: Simplify right side
    62,712.75x = 3,103,093,626.18
  5. Step 5: Solve for x
    x = 3,103,093,626.18/62,712.75
  6. Step 6: Final answer
    x = 49,481.06

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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.