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Finding the Third Proportional to 766.25 and 1,651

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Solution

The third proportional to 766.25 and 1,651 is: 3,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.25 : 1,651 = 1,651 : x
  2. Step 2: Convert to fraction form
    766.25/1,651 = 1,651/x
  3. Step 3: Cross multiply
    766.25x = 1,651 × 1,651
  4. Step 4: Simplify right side
    766.25x = 2,725,801
  5. Step 5: Solve for x
    x = 2,725,801/766.25
  6. Step 6: Final answer
    x = 3,557.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.