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Finding the Fourth Proportional to 68,708.41, 94,796.08 and 38,489.65

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Solution

The fourth proportional to 68,708.41, 94,796.08 and 38,489.65 is: 53,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,708.41 : 94,796.08 = 38,489.65 : x
  2. Step 2: Convert to fraction form
    68,708.41/94,796.08 = 38,489.65/x
  3. Step 3: Cross multiply
    68,708.41x = 94,796.08 × 38,489.65
  4. Step 4: Simplify right side
    68,708.41x = 3,648,667,940.57
  5. Step 5: Solve for x
    x = 3,648,667,940.57/68,708.41
  6. Step 6: Final answer
    x = 53,103.66

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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.