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Finding the Fourth Proportional to 68,986.60, 95,204.91 and 38,770.36

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Solution

The fourth proportional to 68,986.60, 95,204.91 and 38,770.36 is: 53,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,986.60 : 95,204.91 = 38,770.36 : x
  2. Step 2: Convert to fraction form
    68,986.60/95,204.91 = 38,770.36/x
  3. Step 3: Cross multiply
    68,986.60x = 95,204.91 × 38,770.36
  4. Step 4: Simplify right side
    68,986.60x = 3,691,128,634.47
  5. Step 5: Solve for x
    x = 3,691,128,634.47/68,986.60
  6. Step 6: Final answer
    x = 53,505.01

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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.