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Finding the Third Proportional to 1,266 and 3,288

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Solution

The third proportional to 1,266 and 3,288 is: 8,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266 : 3,288 = 3,288 : x
  2. Step 2: Convert to fraction form
    1,266/3,288 = 3,288/x
  3. Step 3: Cross multiply
    1,266x = 3,288 × 3,288
  4. Step 4: Simplify right side
    1,266x = 10,810,944
  5. Step 5: Solve for x
    x = 10,810,944/1,266
  6. Step 6: Final answer
    x = 8,539.45

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.