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Finding the Third Proportional to 2,187 and 3,063

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Solution

The third proportional to 2,187 and 3,063 is: 4,289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187 : 3,063 = 3,063 : x
  2. Step 2: Convert to fraction form
    2,187/3,063 = 3,063/x
  3. Step 3: Cross multiply
    2,187x = 3,063 × 3,063
  4. Step 4: Simplify right side
    2,187x = 9,381,969
  5. Step 5: Solve for x
    x = 9,381,969/2,187
  6. Step 6: Final answer
    x = 4,289.88

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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.