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Finding the Fourth Proportional to 63,489.90, 87,609.87 and 35,194.98

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Solution

The fourth proportional to 63,489.90, 87,609.87 and 35,194.98 is: 48,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.90 : 87,609.87 = 35,194.98 : x
  2. Step 2: Convert to fraction form
    63,489.90/87,609.87 = 35,194.98/x
  3. Step 3: Cross multiply
    63,489.90x = 87,609.87 × 35,194.98
  4. Step 4: Simplify right side
    63,489.90x = 3,083,427,622.45
  5. Step 5: Solve for x
    x = 3,083,427,622.45/63,489.90
  6. Step 6: Final answer
    x = 48,565.64

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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.