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Finding the Third Proportional to 26,640 and 40,446

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Solution

The third proportional to 26,640 and 40,446 is: 61,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640 : 40,446 = 40,446 : x
  2. Step 2: Convert to fraction form
    26,640/40,446 = 40,446/x
  3. Step 3: Cross multiply
    26,640x = 40,446 × 40,446
  4. Step 4: Simplify right side
    26,640x = 1,635,878,916
  5. Step 5: Solve for x
    x = 1,635,878,916/26,640
  6. Step 6: Final answer
    x = 61,406.87

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.