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Finding the Third Proportional to 766.97 and 1,101.09

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Solution

The third proportional to 766.97 and 1,101.09 is: 1,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.97 : 1,101.09 = 1,101.09 : x
  2. Step 2: Convert to fraction form
    766.97/1,101.09 = 1,101.09/x
  3. Step 3: Cross multiply
    766.97x = 1,101.09 × 1,101.09
  4. Step 4: Simplify right side
    766.97x = 1,212,407.45
  5. Step 5: Solve for x
    x = 1,212,407.45/766.97
  6. Step 6: Final answer
    x = 1,580.78

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.