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Finding the Third Proportional to 1,919 and 2,063

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Solution

The third proportional to 1,919 and 2,063 is: 2,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919 : 2,063 = 2,063 : x
  2. Step 2: Convert to fraction form
    1,919/2,063 = 2,063/x
  3. Step 3: Cross multiply
    1,919x = 2,063 × 2,063
  4. Step 4: Simplify right side
    1,919x = 4,255,969
  5. Step 5: Solve for x
    x = 4,255,969/1,919
  6. Step 6: Final answer
    x = 2,217.81

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.