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Finding the Third Proportional to 20,696 and 26,928

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Solution

The third proportional to 20,696 and 26,928 is: 35,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696 : 26,928 = 26,928 : x
  2. Step 2: Convert to fraction form
    20,696/26,928 = 26,928/x
  3. Step 3: Cross multiply
    20,696x = 26,928 × 26,928
  4. Step 4: Simplify right side
    20,696x = 725,117,184
  5. Step 5: Solve for x
    x = 725,117,184/20,696
  6. Step 6: Final answer
    x = 35,036.59

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.