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Finding the Third Proportional to 1,882 and 3,139

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Solution

The third proportional to 1,882 and 3,139 is: 5,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882 : 3,139 = 3,139 : x
  2. Step 2: Convert to fraction form
    1,882/3,139 = 3,139/x
  3. Step 3: Cross multiply
    1,882x = 3,139 × 3,139
  4. Step 4: Simplify right side
    1,882x = 9,853,321
  5. Step 5: Solve for x
    x = 9,853,321/1,882
  6. Step 6: Final answer
    x = 5,235.56

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.