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Finding the Fourth Proportional to 61,879.14, 92,817.90 and 15,132.42

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Solution

The fourth proportional to 61,879.14, 92,817.90 and 15,132.42 is: 22,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.14 : 92,817.90 = 15,132.42 : x
  2. Step 2: Convert to fraction form
    61,879.14/92,817.90 = 15,132.42/x
  3. Step 3: Cross multiply
    61,879.14x = 92,817.90 × 15,132.42
  4. Step 4: Simplify right side
    61,879.14x = 1,404,559,446.32
  5. Step 5: Solve for x
    x = 1,404,559,446.32/61,879.14
  6. Step 6: Final answer
    x = 22,698.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.