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Finding the Fourth Proportional to 63,079.80, 87,049.83 and 34,785.49

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Solution

The fourth proportional to 63,079.80, 87,049.83 and 34,785.49 is: 48,003.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,079.80 : 87,049.83 = 34,785.49 : x
  2. Step 2: Convert to fraction form
    63,079.80/87,049.83 = 34,785.49/x
  3. Step 3: Cross multiply
    63,079.80x = 87,049.83 × 34,785.49
  4. Step 4: Simplify right side
    63,079.80x = 3,028,070,920.13
  5. Step 5: Solve for x
    x = 3,028,070,920.13/63,079.80
  6. Step 6: Final answer
    x = 48,003.81

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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.