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Finding the Fourth Proportional to 62,988.92, 86,924.69 and 34,694.61

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Solution

The fourth proportional to 62,988.92, 86,924.69 and 34,694.61 is: 47,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.92 : 86,924.69 = 34,694.61 : x
  2. Step 2: Convert to fraction form
    62,988.92/86,924.69 = 34,694.61/x
  3. Step 3: Cross multiply
    62,988.92x = 86,924.69 × 34,694.61
  4. Step 4: Simplify right side
    62,988.92x = 3,015,817,784.30
  5. Step 5: Solve for x
    x = 3,015,817,784.30/62,988.92
  6. Step 6: Final answer
    x = 47,878.54

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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.