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Finding the Fourth Proportional to 69,079.36, 95,325.60 and 38,865.96

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Solution

The fourth proportional to 69,079.36, 95,325.60 and 38,865.96 is: 53,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.36 : 95,325.60 = 38,865.96 : x
  2. Step 2: Convert to fraction form
    69,079.36/95,325.60 = 38,865.96/x
  3. Step 3: Cross multiply
    69,079.36x = 95,325.60 × 38,865.96
  4. Step 4: Simplify right side
    69,079.36x = 3,704,920,956.58
  5. Step 5: Solve for x
    x = 3,704,920,956.58/69,079.36
  6. Step 6: Final answer
    x = 53,632.82

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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.