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Finding the Third Proportional to 5,913 and 12,867

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Solution

The third proportional to 5,913 and 12,867 is: 27,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913 : 12,867 = 12,867 : x
  2. Step 2: Convert to fraction form
    5,913/12,867 = 12,867/x
  3. Step 3: Cross multiply
    5,913x = 12,867 × 12,867
  4. Step 4: Simplify right side
    5,913x = 165,559,689
  5. Step 5: Solve for x
    x = 165,559,689/5,913
  6. Step 6: Final answer
    x = 27,999.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.