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Finding the Third Proportional to 11,667 and 14,178

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Solution

The third proportional to 11,667 and 14,178 is: 17,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,667 : 14,178 = 14,178 : x
  2. Step 2: Convert to fraction form
    11,667/14,178 = 14,178/x
  3. Step 3: Cross multiply
    11,667x = 14,178 × 14,178
  4. Step 4: Simplify right side
    11,667x = 201,015,684
  5. Step 5: Solve for x
    x = 201,015,684/11,667
  6. Step 6: Final answer
    x = 17,229.42

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.