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Finding the Third Proportional to 12,165.19 and 18,230.70

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Solution

The third proportional to 12,165.19 and 18,230.70 is: 27,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.19 : 18,230.70 = 18,230.70 : x
  2. Step 2: Convert to fraction form
    12,165.19/18,230.70 = 18,230.70/x
  3. Step 3: Cross multiply
    12,165.19x = 18,230.70 × 18,230.70
  4. Step 4: Simplify right side
    12,165.19x = 332,358,251.58
  5. Step 5: Solve for x
    x = 332,358,251.58/12,165.19
  6. Step 6: Final answer
    x = 27,320.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.