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Finding the Third Proportional to 26,478 and 38,906

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Solution

The third proportional to 26,478 and 38,906 is: 57,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478 : 38,906 = 38,906 : x
  2. Step 2: Convert to fraction form
    26,478/38,906 = 38,906/x
  3. Step 3: Cross multiply
    26,478x = 38,906 × 38,906
  4. Step 4: Simplify right side
    26,478x = 1,513,676,836
  5. Step 5: Solve for x
    x = 1,513,676,836/26,478
  6. Step 6: Final answer
    x = 57,167.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.