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Finding the Third Proportional to 12,235 and 18,005

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Solution

The third proportional to 12,235 and 18,005 is: 26,496.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235 : 18,005 = 18,005 : x
  2. Step 2: Convert to fraction form
    12,235/18,005 = 18,005/x
  3. Step 3: Cross multiply
    12,235x = 18,005 × 18,005
  4. Step 4: Simplify right side
    12,235x = 324,180,025
  5. Step 5: Solve for x
    x = 324,180,025/12,235
  6. Step 6: Final answer
    x = 26,496.12

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.