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Finding the Third Proportional to 18,490 and 27,766

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Solution

The third proportional to 18,490 and 27,766 is: 41,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490 : 27,766 = 27,766 : x
  2. Step 2: Convert to fraction form
    18,490/27,766 = 27,766/x
  3. Step 3: Cross multiply
    18,490x = 27,766 × 27,766
  4. Step 4: Simplify right side
    18,490x = 770,950,756
  5. Step 5: Solve for x
    x = 770,950,756/18,490
  6. Step 6: Final answer
    x = 41,695.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.