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Finding the Third Proportional to 19,831 and 26,436

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Solution

The third proportional to 19,831 and 26,436 is: 35,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831 : 26,436 = 26,436 : x
  2. Step 2: Convert to fraction form
    19,831/26,436 = 26,436/x
  3. Step 3: Cross multiply
    19,831x = 26,436 × 26,436
  4. Step 4: Simplify right side
    19,831x = 698,862,096
  5. Step 5: Solve for x
    x = 698,862,096/19,831
  6. Step 6: Final answer
    x = 35,240.89

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.