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Finding the Fourth Proportional to 48,908.31, 67,493.12 and 27,687.39

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Solution

The fourth proportional to 48,908.31, 67,493.12 and 27,687.39 is: 38,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,908.31 : 67,493.12 = 27,687.39 : x
  2. Step 2: Convert to fraction form
    48,908.31/67,493.12 = 27,687.39/x
  3. Step 3: Cross multiply
    48,908.31x = 67,493.12 × 27,687.39
  4. Step 4: Simplify right side
    48,908.31x = 1,868,708,197.32
  5. Step 5: Solve for x
    x = 1,868,708,197.32/48,908.31
  6. Step 6: Final answer
    x = 38,208.40

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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.