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Finding the Third Proportional to 7,449 and 16,239

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Solution

The third proportional to 7,449 and 16,239 is: 35,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449 : 16,239 = 16,239 : x
  2. Step 2: Convert to fraction form
    7,449/16,239 = 16,239/x
  3. Step 3: Cross multiply
    7,449x = 16,239 × 16,239
  4. Step 4: Simplify right side
    7,449x = 263,705,121
  5. Step 5: Solve for x
    x = 263,705,121/7,449
  6. Step 6: Final answer
    x = 35,401.41

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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.