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Finding the Third Proportional to 1,232 and 1,811

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Solution

The third proportional to 1,232 and 1,811 is: 2,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232 : 1,811 = 1,811 : x
  2. Step 2: Convert to fraction form
    1,232/1,811 = 1,811/x
  3. Step 3: Cross multiply
    1,232x = 1,811 × 1,811
  4. Step 4: Simplify right side
    1,232x = 3,279,721
  5. Step 5: Solve for x
    x = 3,279,721/1,232
  6. Step 6: Final answer
    x = 2,662.11

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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.