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Finding the Fourth Proportional to 62,988.97, 86,924.77 and 34,694.66

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Solution

The fourth proportional to 62,988.97, 86,924.77 and 34,694.66 is: 47,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.97 : 86,924.77 = 34,694.66 : x
  2. Step 2: Convert to fraction form
    62,988.97/86,924.77 = 34,694.66/x
  3. Step 3: Cross multiply
    62,988.97x = 86,924.77 × 34,694.66
  4. Step 4: Simplify right side
    62,988.97x = 3,015,825,340.73
  5. Step 5: Solve for x
    x = 3,015,825,340.73/62,988.97
  6. Step 6: Final answer
    x = 47,878.63

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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.