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Finding the Fourth Proportional to 63,213.75, 87,227.28 and 34,919.64

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Solution

The fourth proportional to 63,213.75, 87,227.28 and 34,919.64 is: 48,184.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,213.75 : 87,227.28 = 34,919.64 : x
  2. Step 2: Convert to fraction form
    63,213.75/87,227.28 = 34,919.64/x
  3. Step 3: Cross multiply
    63,213.75x = 87,227.28 × 34,919.64
  4. Step 4: Simplify right side
    63,213.75x = 3,045,945,215.78
  5. Step 5: Solve for x
    x = 3,045,945,215.78/63,213.75
  6. Step 6: Final answer
    x = 48,184.85

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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.