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Finding the Third Proportional to 11,767 and 12,997

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Solution

The third proportional to 11,767 and 12,997 is: 14,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,767 : 12,997 = 12,997 : x
  2. Step 2: Convert to fraction form
    11,767/12,997 = 12,997/x
  3. Step 3: Cross multiply
    11,767x = 12,997 × 12,997
  4. Step 4: Simplify right side
    11,767x = 168,922,009
  5. Step 5: Solve for x
    x = 168,922,009/11,767
  6. Step 6: Final answer
    x = 14,355.57

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.