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Finding the Third Proportional to 11,331 and 12,411

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Solution

The third proportional to 11,331 and 12,411 is: 13,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331 : 12,411 = 12,411 : x
  2. Step 2: Convert to fraction form
    11,331/12,411 = 12,411/x
  3. Step 3: Cross multiply
    11,331x = 12,411 × 12,411
  4. Step 4: Simplify right side
    11,331x = 154,032,921
  5. Step 5: Solve for x
    x = 154,032,921/11,331
  6. Step 6: Final answer
    x = 13,593.94

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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.