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Finding the Third Proportional to 694.50 and 1,063

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Solution

The third proportional to 694.50 and 1,063 is: 1,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.50 : 1,063 = 1,063 : x
  2. Step 2: Convert to fraction form
    694.50/1,063 = 1,063/x
  3. Step 3: Cross multiply
    694.50x = 1,063 × 1,063
  4. Step 4: Simplify right side
    694.50x = 1,129,969
  5. Step 5: Solve for x
    x = 1,129,969/694.50
  6. Step 6: Final answer
    x = 1,627.03

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.