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Finding the Fourth Proportional to 66,865.67, 100,260.22 and 27,401.25

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Solution

The fourth proportional to 66,865.67, 100,260.22 and 27,401.25 is: 41,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,865.67 : 100,260.22 = 27,401.25 : x
  2. Step 2: Convert to fraction form
    66,865.67/100,260.22 = 27,401.25/x
  3. Step 3: Cross multiply
    66,865.67x = 100,260.22 × 27,401.25
  4. Step 4: Simplify right side
    66,865.67x = 2,747,255,353.28
  5. Step 5: Solve for x
    x = 2,747,255,353.28/66,865.67
  6. Step 6: Final answer
    x = 41,086.19

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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.