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Finding the Third Proportional to 2,435 and 3,243

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Solution

The third proportional to 2,435 and 3,243 is: 4,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435 : 3,243 = 3,243 : x
  2. Step 2: Convert to fraction form
    2,435/3,243 = 3,243/x
  3. Step 3: Cross multiply
    2,435x = 3,243 × 3,243
  4. Step 4: Simplify right side
    2,435x = 10,517,049
  5. Step 5: Solve for x
    x = 10,517,049/2,435
  6. Step 6: Final answer
    x = 4,319.12

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.