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Finding the Third Proportional to 11,792 and 18,306

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Solution

The third proportional to 11,792 and 18,306 is: 28,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,792 : 18,306 = 18,306 : x
  2. Step 2: Convert to fraction form
    11,792/18,306 = 18,306/x
  3. Step 3: Cross multiply
    11,792x = 18,306 × 18,306
  4. Step 4: Simplify right side
    11,792x = 335,109,636
  5. Step 5: Solve for x
    x = 335,109,636/11,792
  6. Step 6: Final answer
    x = 28,418.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.