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Finding the Third Proportional to 11,116 and 15,874

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Solution

The third proportional to 11,116 and 15,874 is: 22,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116 : 15,874 = 15,874 : x
  2. Step 2: Convert to fraction form
    11,116/15,874 = 15,874/x
  3. Step 3: Cross multiply
    11,116x = 15,874 × 15,874
  4. Step 4: Simplify right side
    11,116x = 251,983,876
  5. Step 5: Solve for x
    x = 251,983,876/11,116
  6. Step 6: Final answer
    x = 22,668.57

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.