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Finding the Third Proportional to 3,330 and 5,057

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Solution

The third proportional to 3,330 and 5,057 is: 7,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330 : 5,057 = 5,057 : x
  2. Step 2: Convert to fraction form
    3,330/5,057 = 5,057/x
  3. Step 3: Cross multiply
    3,330x = 5,057 × 5,057
  4. Step 4: Simplify right side
    3,330x = 25,573,249
  5. Step 5: Solve for x
    x = 25,573,249/3,330
  6. Step 6: Final answer
    x = 7,679.65

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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.