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Finding the Third Proportional to 5,168 and 11,900

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Solution

The third proportional to 5,168 and 11,900 is: 27,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168 : 11,900 = 11,900 : x
  2. Step 2: Convert to fraction form
    5,168/11,900 = 11,900/x
  3. Step 3: Cross multiply
    5,168x = 11,900 × 11,900
  4. Step 4: Simplify right side
    5,168x = 141,610,000
  5. Step 5: Solve for x
    x = 141,610,000/5,168
  6. Step 6: Final answer
    x = 27,401.32

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.