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Finding the Third Proportional to 695.75 and 1,512.25

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Solution

The third proportional to 695.75 and 1,512.25 is: 3,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.75 : 1,512.25 = 1,512.25 : x
  2. Step 2: Convert to fraction form
    695.75/1,512.25 = 1,512.25/x
  3. Step 3: Cross multiply
    695.75x = 1,512.25 × 1,512.25
  4. Step 4: Simplify right side
    695.75x = 2,286,900.06
  5. Step 5: Solve for x
    x = 2,286,900.06/695.75
  6. Step 6: Final answer
    x = 3,286.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.