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Finding the Fourth Proportional to 49,800, 68,724 and 27,444

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Solution

The fourth proportional to 49,800, 68,724 and 27,444 is: 37,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,800 : 68,724 = 27,444 : x
  2. Step 2: Convert to fraction form
    49,800/68,724 = 27,444/x
  3. Step 3: Cross multiply
    49,800x = 68,724 × 27,444
  4. Step 4: Simplify right side
    49,800x = 1,886,061,456
  5. Step 5: Solve for x
    x = 1,886,061,456/49,800
  6. Step 6: Final answer
    x = 37,872.72

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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.