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Finding the Third Proportional to 3,321 and 5,562

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Solution

The third proportional to 3,321 and 5,562 is: 9,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321 : 5,562 = 5,562 : x
  2. Step 2: Convert to fraction form
    3,321/5,562 = 5,562/x
  3. Step 3: Cross multiply
    3,321x = 5,562 × 5,562
  4. Step 4: Simplify right side
    3,321x = 30,935,844
  5. Step 5: Solve for x
    x = 30,935,844/3,321
  6. Step 6: Final answer
    x = 9,315.22

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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.