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Finding the Third Proportional to 1,539 and 3,282.75

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Solution

The third proportional to 1,539 and 3,282.75 is: 7,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539 : 3,282.75 = 3,282.75 : x
  2. Step 2: Convert to fraction form
    1,539/3,282.75 = 3,282.75/x
  3. Step 3: Cross multiply
    1,539x = 3,282.75 × 3,282.75
  4. Step 4: Simplify right side
    1,539x = 10,776,447.56
  5. Step 5: Solve for x
    x = 10,776,447.56/1,539
  6. Step 6: Final answer
    x = 7,002.24

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.