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Finding the Third Proportional to 547 and 1,103

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Solution

The third proportional to 547 and 1,103 is: 2,224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547 : 1,103 = 1,103 : x
  2. Step 2: Convert to fraction form
    547/1,103 = 1,103/x
  3. Step 3: Cross multiply
    547x = 1,103 × 1,103
  4. Step 4: Simplify right side
    547x = 1,216,609
  5. Step 5: Solve for x
    x = 1,216,609/547
  6. Step 6: Final answer
    x = 2,224.15

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.