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Finding the Third Proportional to 5,375 and 7,612

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Solution

The third proportional to 5,375 and 7,612 is: 10,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375 : 7,612 = 7,612 : x
  2. Step 2: Convert to fraction form
    5,375/7,612 = 7,612/x
  3. Step 3: Cross multiply
    5,375x = 7,612 × 7,612
  4. Step 4: Simplify right side
    5,375x = 57,942,544
  5. Step 5: Solve for x
    x = 57,942,544/5,375
  6. Step 6: Final answer
    x = 10,780.01

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.