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Finding the Third Proportional to 3,363 and 5,121

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Solution

The third proportional to 3,363 and 5,121 is: 7,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363 : 5,121 = 5,121 : x
  2. Step 2: Convert to fraction form
    3,363/5,121 = 5,121/x
  3. Step 3: Cross multiply
    3,363x = 5,121 × 5,121
  4. Step 4: Simplify right side
    3,363x = 26,224,641
  5. Step 5: Solve for x
    x = 26,224,641/3,363
  6. Step 6: Final answer
    x = 7,797.99

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.