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Finding the Fourth Proportional to 62,872.89, 86,800.46 and 41,680.86

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Solution

The fourth proportional to 62,872.89, 86,800.46 and 41,680.86 is: 57,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,872.89 : 86,800.46 = 41,680.86 : x
  2. Step 2: Convert to fraction form
    62,872.89/86,800.46 = 41,680.86/x
  3. Step 3: Cross multiply
    62,872.89x = 86,800.46 × 41,680.86
  4. Step 4: Simplify right side
    62,872.89x = 3,617,917,612.79
  5. Step 5: Solve for x
    x = 3,617,917,612.79/62,872.89
  6. Step 6: Final answer
    x = 57,543.36

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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.