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Finding the Third Proportional to 1,356 and 2,268

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Solution

The third proportional to 1,356 and 2,268 is: 3,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356 : 2,268 = 2,268 : x
  2. Step 2: Convert to fraction form
    1,356/2,268 = 2,268/x
  3. Step 3: Cross multiply
    1,356x = 2,268 × 2,268
  4. Step 4: Simplify right side
    1,356x = 5,143,824
  5. Step 5: Solve for x
    x = 5,143,824/1,356
  6. Step 6: Final answer
    x = 3,793.38

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.