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Finding the Fourth Proportional to 65,863.85, 98,796.03 and 15,943.87

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Solution

The fourth proportional to 65,863.85, 98,796.03 and 15,943.87 is: 23,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.85 : 98,796.03 = 15,943.87 : x
  2. Step 2: Convert to fraction form
    65,863.85/98,796.03 = 15,943.87/x
  3. Step 3: Cross multiply
    65,863.85x = 98,796.03 × 15,943.87
  4. Step 4: Simplify right side
    65,863.85x = 1,575,190,793.96
  5. Step 5: Solve for x
    x = 1,575,190,793.96/65,863.85
  6. Step 6: Final answer
    x = 23,915.86

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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.