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Finding the Third Proportional to 5,125 and 7,519

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Solution

The third proportional to 5,125 and 7,519 is: 11,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125 : 7,519 = 7,519 : x
  2. Step 2: Convert to fraction form
    5,125/7,519 = 7,519/x
  3. Step 3: Cross multiply
    5,125x = 7,519 × 7,519
  4. Step 4: Simplify right side
    5,125x = 56,535,361
  5. Step 5: Solve for x
    x = 56,535,361/5,125
  6. Step 6: Final answer
    x = 11,031.29

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.