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Finding the Third Proportional to 12,138 and 16,477

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Solution

The third proportional to 12,138 and 16,477 is: 22,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138 : 16,477 = 16,477 : x
  2. Step 2: Convert to fraction form
    12,138/16,477 = 16,477/x
  3. Step 3: Cross multiply
    12,138x = 16,477 × 16,477
  4. Step 4: Simplify right side
    12,138x = 271,491,529
  5. Step 5: Solve for x
    x = 271,491,529/12,138
  6. Step 6: Final answer
    x = 22,367.07

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.