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Finding the Fourth Proportional to 69,967.76, 96,557.04 and 38,138.24

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Solution

The fourth proportional to 69,967.76, 96,557.04 and 38,138.24 is: 52,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.76 : 96,557.04 = 38,138.24 : x
  2. Step 2: Convert to fraction form
    69,967.76/96,557.04 = 38,138.24/x
  3. Step 3: Cross multiply
    69,967.76x = 96,557.04 × 38,138.24
  4. Step 4: Simplify right side
    69,967.76x = 3,682,515,565.21
  5. Step 5: Solve for x
    x = 3,682,515,565.21/69,967.76
  6. Step 6: Final answer
    x = 52,631.61

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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.