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Finding the Fourth Proportional to 69,170.39, 95,458.34 and 38,965.31

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Solution

The fourth proportional to 69,170.39, 95,458.34 and 38,965.31 is: 53,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,170.39 : 95,458.34 = 38,965.31 : x
  2. Step 2: Convert to fraction form
    69,170.39/95,458.34 = 38,965.31/x
  3. Step 3: Cross multiply
    69,170.39x = 95,458.34 × 38,965.31
  4. Step 4: Simplify right side
    69,170.39x = 3,719,563,615.36
  5. Step 5: Solve for x
    x = 3,719,563,615.36/69,170.39
  6. Step 6: Final answer
    x = 53,773.93

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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.