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Finding the Third Proportional to 2,827 and 6,139

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Solution

The third proportional to 2,827 and 6,139 is: 13,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827 : 6,139 = 6,139 : x
  2. Step 2: Convert to fraction form
    2,827/6,139 = 6,139/x
  3. Step 3: Cross multiply
    2,827x = 6,139 × 6,139
  4. Step 4: Simplify right side
    2,827x = 37,687,321
  5. Step 5: Solve for x
    x = 37,687,321/2,827
  6. Step 6: Final answer
    x = 13,331.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.