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Finding the Third Proportional to 11,668.50 and 15,522.75

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Solution

The third proportional to 11,668.50 and 15,522.75 is: 20,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.50 : 15,522.75 = 15,522.75 : x
  2. Step 2: Convert to fraction form
    11,668.50/15,522.75 = 15,522.75/x
  3. Step 3: Cross multiply
    11,668.50x = 15,522.75 × 15,522.75
  4. Step 4: Simplify right side
    11,668.50x = 240,955,767.56
  5. Step 5: Solve for x
    x = 240,955,767.56/11,668.50
  6. Step 6: Final answer
    x = 20,650.11

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.