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Finding the Third Proportional to 963.50 and 1,103

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Solution

The third proportional to 963.50 and 1,103 is: 1,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.50 : 1,103 = 1,103 : x
  2. Step 2: Convert to fraction form
    963.50/1,103 = 1,103/x
  3. Step 3: Cross multiply
    963.50x = 1,103 × 1,103
  4. Step 4: Simplify right side
    963.50x = 1,216,609
  5. Step 5: Solve for x
    x = 1,216,609/963.50
  6. Step 6: Final answer
    x = 1,262.70

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.