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Finding the Third Proportional to 12,331.13 and 18,009

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Solution

The third proportional to 12,331.13 and 18,009 is: 26,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.13 : 18,009 = 18,009 : x
  2. Step 2: Convert to fraction form
    12,331.13/18,009 = 18,009/x
  3. Step 3: Cross multiply
    12,331.13x = 18,009 × 18,009
  4. Step 4: Simplify right side
    12,331.13x = 324,324,081
  5. Step 5: Solve for x
    x = 324,324,081/12,331.13
  6. Step 6: Final answer
    x = 26,301.26

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.