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Finding the Fourth Proportional to 68,706.41, 94,793.33 and 38,487.65

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Solution

The fourth proportional to 68,706.41, 94,793.33 and 38,487.65 is: 53,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.41 : 94,793.33 = 38,487.65 : x
  2. Step 2: Convert to fraction form
    68,706.41/94,793.33 = 38,487.65/x
  3. Step 3: Cross multiply
    68,706.41x = 94,793.33 × 38,487.65
  4. Step 4: Simplify right side
    68,706.41x = 3,648,372,314.94
  5. Step 5: Solve for x
    x = 3,648,372,314.94/68,706.41
  6. Step 6: Final answer
    x = 53,100.90

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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.