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Finding the Third Proportional to 2,729 and 5,887

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Solution

The third proportional to 2,729 and 5,887 is: 12,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729 : 5,887 = 5,887 : x
  2. Step 2: Convert to fraction form
    2,729/5,887 = 5,887/x
  3. Step 3: Cross multiply
    2,729x = 5,887 × 5,887
  4. Step 4: Simplify right side
    2,729x = 34,656,769
  5. Step 5: Solve for x
    x = 34,656,769/2,729
  6. Step 6: Final answer
    x = 12,699.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.