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Finding the Third Proportional to 15,326 and 16,766

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Solution

The third proportional to 15,326 and 16,766 is: 18,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326 : 16,766 = 16,766 : x
  2. Step 2: Convert to fraction form
    15,326/16,766 = 16,766/x
  3. Step 3: Cross multiply
    15,326x = 16,766 × 16,766
  4. Step 4: Simplify right side
    15,326x = 281,098,756
  5. Step 5: Solve for x
    x = 281,098,756/15,326
  6. Step 6: Final answer
    x = 18,341.30

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.