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Finding the Third Proportional to 10,518 and 16,286

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Solution

The third proportional to 10,518 and 16,286 is: 25,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518 : 16,286 = 16,286 : x
  2. Step 2: Convert to fraction form
    10,518/16,286 = 16,286/x
  3. Step 3: Cross multiply
    10,518x = 16,286 × 16,286
  4. Step 4: Simplify right side
    10,518x = 265,233,796
  5. Step 5: Solve for x
    x = 265,233,796/10,518
  6. Step 6: Final answer
    x = 25,217.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.