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Finding the Third Proportional to 1,914 and 2,871

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Solution

The third proportional to 1,914 and 2,871 is: 4,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914 : 2,871 = 2,871 : x
  2. Step 2: Convert to fraction form
    1,914/2,871 = 2,871/x
  3. Step 3: Cross multiply
    1,914x = 2,871 × 2,871
  4. Step 4: Simplify right side
    1,914x = 8,242,641
  5. Step 5: Solve for x
    x = 8,242,641/1,914
  6. Step 6: Final answer
    x = 4,306.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.