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Finding the Fourth Proportional to 61,902.72, 92,853.15 and 15,155.60

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Solution

The fourth proportional to 61,902.72, 92,853.15 and 15,155.60 is: 22,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,902.72 : 92,853.15 = 15,155.60 : x
  2. Step 2: Convert to fraction form
    61,902.72/92,853.15 = 15,155.60/x
  3. Step 3: Cross multiply
    61,902.72x = 92,853.15 × 15,155.60
  4. Step 4: Simplify right side
    61,902.72x = 1,407,244,735.87
  5. Step 5: Solve for x
    x = 1,407,244,735.87/61,902.72
  6. Step 6: Final answer
    x = 22,733.16

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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.