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Finding the Third Proportional to 1,519 and 3,089

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Solution

The third proportional to 1,519 and 3,089 is: 6,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519 : 3,089 = 3,089 : x
  2. Step 2: Convert to fraction form
    1,519/3,089 = 3,089/x
  3. Step 3: Cross multiply
    1,519x = 3,089 × 3,089
  4. Step 4: Simplify right side
    1,519x = 9,541,921
  5. Step 5: Solve for x
    x = 9,541,921/1,519
  6. Step 6: Final answer
    x = 6,281.71

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.