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Finding the Third Proportional to 1,336 and 3,313

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Solution

The third proportional to 1,336 and 3,313 is: 8,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336 : 3,313 = 3,313 : x
  2. Step 2: Convert to fraction form
    1,336/3,313 = 3,313/x
  3. Step 3: Cross multiply
    1,336x = 3,313 × 3,313
  4. Step 4: Simplify right side
    1,336x = 10,975,969
  5. Step 5: Solve for x
    x = 10,975,969/1,336
  6. Step 6: Final answer
    x = 8,215.55

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.