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Finding the Third Proportional to 5,401.50 and 11,805

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Solution

The third proportional to 5,401.50 and 11,805 is: 25,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.50 : 11,805 = 11,805 : x
  2. Step 2: Convert to fraction form
    5,401.50/11,805 = 11,805/x
  3. Step 3: Cross multiply
    5,401.50x = 11,805 × 11,805
  4. Step 4: Simplify right side
    5,401.50x = 139,358,025
  5. Step 5: Solve for x
    x = 139,358,025/5,401.50
  6. Step 6: Final answer
    x = 25,799.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.