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Finding the Third Proportional to 2,766.75 and 5,256.75

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Solution

The third proportional to 2,766.75 and 5,256.75 is: 9,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.75 : 5,256.75 = 5,256.75 : x
  2. Step 2: Convert to fraction form
    2,766.75/5,256.75 = 5,256.75/x
  3. Step 3: Cross multiply
    2,766.75x = 5,256.75 × 5,256.75
  4. Step 4: Simplify right side
    2,766.75x = 27,633,420.56
  5. Step 5: Solve for x
    x = 27,633,420.56/2,766.75
  6. Step 6: Final answer
    x = 9,987.68

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.