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Finding the Third Proportional to 2,719 and 3,817

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Solution

The third proportional to 2,719 and 3,817 is: 5,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719 : 3,817 = 3,817 : x
  2. Step 2: Convert to fraction form
    2,719/3,817 = 3,817/x
  3. Step 3: Cross multiply
    2,719x = 3,817 × 3,817
  4. Step 4: Simplify right side
    2,719x = 14,569,489
  5. Step 5: Solve for x
    x = 14,569,489/2,719
  6. Step 6: Final answer
    x = 5,358.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.