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Finding the Fourth Proportional to 63,493.90, 87,615.39 and 35,198.98

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Solution

The fourth proportional to 63,493.90, 87,615.39 and 35,198.98 is: 48,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,493.90 : 87,615.39 = 35,198.98 : x
  2. Step 2: Convert to fraction form
    63,493.90/87,615.39 = 35,198.98/x
  3. Step 3: Cross multiply
    63,493.90x = 87,615.39 × 35,198.98
  4. Step 4: Simplify right side
    63,493.90x = 3,083,972,360.30
  5. Step 5: Solve for x
    x = 3,083,972,360.30/63,493.90
  6. Step 6: Final answer
    x = 48,571.16

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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.