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Finding the Third Proportional to 4,591 and 7,103

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Solution

The third proportional to 4,591 and 7,103 is: 10,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591 : 7,103 = 7,103 : x
  2. Step 2: Convert to fraction form
    4,591/7,103 = 7,103/x
  3. Step 3: Cross multiply
    4,591x = 7,103 × 7,103
  4. Step 4: Simplify right side
    4,591x = 50,452,609
  5. Step 5: Solve for x
    x = 50,452,609/4,591
  6. Step 6: Final answer
    x = 10,989.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.