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Finding the Fourth Proportional to 48,690.78, 67,193.17 and 27,469.99

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Solution

The fourth proportional to 48,690.78, 67,193.17 and 27,469.99 is: 37,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,690.78 : 67,193.17 = 27,469.99 : x
  2. Step 2: Convert to fraction form
    48,690.78/67,193.17 = 27,469.99/x
  3. Step 3: Cross multiply
    48,690.78x = 67,193.17 × 27,469.99
  4. Step 4: Simplify right side
    48,690.78x = 1,845,795,707.97
  5. Step 5: Solve for x
    x = 1,845,795,707.97/48,690.78
  6. Step 6: Final answer
    x = 37,908.53

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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.