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Finding the Fourth Proportional to 63,489.98, 87,620.10 and 35,195.66

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Solution

The fourth proportional to 63,489.98, 87,620.10 and 35,195.66 is: 48,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.98 : 87,620.10 = 35,195.66 : x
  2. Step 2: Convert to fraction form
    63,489.98/87,620.10 = 35,195.66/x
  3. Step 3: Cross multiply
    63,489.98x = 87,620.10 × 35,195.66
  4. Step 4: Simplify right side
    63,489.98x = 3,083,847,797.08
  5. Step 5: Solve for x
    x = 3,083,847,797.08/63,489.98
  6. Step 6: Final answer
    x = 48,572.20

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1.5x scale

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.