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Finding the Third Proportional to 21,940 and 48,256

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Solution

The third proportional to 21,940 and 48,256 is: 106,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940 : 48,256 = 48,256 : x
  2. Step 2: Convert to fraction form
    21,940/48,256 = 48,256/x
  3. Step 3: Cross multiply
    21,940x = 48,256 × 48,256
  4. Step 4: Simplify right side
    21,940x = 2,328,641,536
  5. Step 5: Solve for x
    x = 2,328,641,536/21,940
  6. Step 6: Final answer
    x = 106,136.81

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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.