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Finding the Third Proportional to 694.75 and 913.88

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Solution

The third proportional to 694.75 and 913.88 is: 1,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.75 : 913.88 = 913.88 : x
  2. Step 2: Convert to fraction form
    694.75/913.88 = 913.88/x
  3. Step 3: Cross multiply
    694.75x = 913.88 × 913.88
  4. Step 4: Simplify right side
    694.75x = 835,167.52
  5. Step 5: Solve for x
    x = 835,167.52/694.75
  6. Step 6: Final answer
    x = 1,202.11

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.