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Finding the Fourth Proportional to 62,897.66, 86,778.11 and 35,670.65

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Solution

The fourth proportional to 62,897.66, 86,778.11 and 35,670.65 is: 49,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,897.66 : 86,778.11 = 35,670.65 : x
  2. Step 2: Convert to fraction form
    62,897.66/86,778.11 = 35,670.65/x
  3. Step 3: Cross multiply
    62,897.66x = 86,778.11 × 35,670.65
  4. Step 4: Simplify right side
    62,897.66x = 3,095,431,876.62
  5. Step 5: Solve for x
    x = 3,095,431,876.62/62,897.66
  6. Step 6: Final answer
    x = 49,213.78

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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.