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Finding the Third Proportional to 19,821 and 26,694

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Solution

The third proportional to 19,821 and 26,694 is: 35,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821 : 26,694 = 26,694 : x
  2. Step 2: Convert to fraction form
    19,821/26,694 = 26,694/x
  3. Step 3: Cross multiply
    19,821x = 26,694 × 26,694
  4. Step 4: Simplify right side
    19,821x = 712,569,636
  5. Step 5: Solve for x
    x = 712,569,636/19,821
  6. Step 6: Final answer
    x = 35,950.24

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.