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Finding the Fourth Proportional to 62,961.96, 86,886.48 and 36,103.80

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Solution

The fourth proportional to 62,961.96, 86,886.48 and 36,103.80 is: 49,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,961.96 : 86,886.48 = 36,103.80 : x
  2. Step 2: Convert to fraction form
    62,961.96/86,886.48 = 36,103.80/x
  3. Step 3: Cross multiply
    62,961.96x = 86,886.48 × 36,103.80
  4. Step 4: Simplify right side
    62,961.96x = 3,136,932,096.62
  5. Step 5: Solve for x
    x = 3,136,932,096.62/62,961.96
  6. Step 6: Final answer
    x = 49,822.66

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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.