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Finding the Fourth Proportional to 62,876.64, 86,805.65 and 41,684.61

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Solution

The fourth proportional to 62,876.64, 86,805.65 and 41,684.61 is: 57,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,876.64 : 86,805.65 = 41,684.61 : x
  2. Step 2: Convert to fraction form
    62,876.64/86,805.65 = 41,684.61/x
  3. Step 3: Cross multiply
    62,876.64x = 86,805.65 × 41,684.61
  4. Step 4: Simplify right side
    62,876.64x = 3,618,459,457.62
  5. Step 5: Solve for x
    x = 3,618,459,457.62/62,876.64
  6. Step 6: Final answer
    x = 57,548.55

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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.