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Finding the Third Proportional to 27,918 and 61,338

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Solution

The third proportional to 27,918 and 61,338 is: 134,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918 : 61,338 = 61,338 : x
  2. Step 2: Convert to fraction form
    27,918/61,338 = 61,338/x
  3. Step 3: Cross multiply
    27,918x = 61,338 × 61,338
  4. Step 4: Simplify right side
    27,918x = 3,762,350,244
  5. Step 5: Solve for x
    x = 3,762,350,244/27,918
  6. Step 6: Final answer
    x = 134,764.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.