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Finding the Third Proportional to 27,942.50 and 54,479

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Solution

The third proportional to 27,942.50 and 54,479 is: 106,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.50 : 54,479 = 54,479 : x
  2. Step 2: Convert to fraction form
    27,942.50/54,479 = 54,479/x
  3. Step 3: Cross multiply
    27,942.50x = 54,479 × 54,479
  4. Step 4: Simplify right side
    27,942.50x = 2,967,961,441
  5. Step 5: Solve for x
    x = 2,967,961,441/27,942.50
  6. Step 6: Final answer
    x = 106,216.75

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.