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Finding the Fourth Proportional to 68,471.88, 94,481.79 and 38,253.42

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Solution

The fourth proportional to 68,471.88, 94,481.79 and 38,253.42 is: 52,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,471.88 : 94,481.79 = 38,253.42 : x
  2. Step 2: Convert to fraction form
    68,471.88/94,481.79 = 38,253.42/x
  3. Step 3: Cross multiply
    68,471.88x = 94,481.79 × 38,253.42
  4. Step 4: Simplify right side
    68,471.88x = 3,614,251,595.22
  5. Step 5: Solve for x
    x = 3,614,251,595.22/68,471.88
  6. Step 6: Final answer
    x = 52,784.47

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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.