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Finding the Third Proportional to 839 and 2,114

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Solution

The third proportional to 839 and 2,114 is: 5,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    839 : 2,114 = 2,114 : x
  2. Step 2: Convert to fraction form
    839/2,114 = 2,114/x
  3. Step 3: Cross multiply
    839x = 2,114 × 2,114
  4. Step 4: Simplify right side
    839x = 4,468,996
  5. Step 5: Solve for x
    x = 4,468,996/839
  6. Step 6: Final answer
    x = 5,326.57

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Why These Related Problems?

These problems maintain the same ratio (2.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.