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Finding the Third Proportional to 1,529 and 3,379

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Solution

The third proportional to 1,529 and 3,379 is: 7,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529 : 3,379 = 3,379 : x
  2. Step 2: Convert to fraction form
    1,529/3,379 = 3,379/x
  3. Step 3: Cross multiply
    1,529x = 3,379 × 3,379
  4. Step 4: Simplify right side
    1,529x = 11,417,641
  5. Step 5: Solve for x
    x = 11,417,641/1,529
  6. Step 6: Final answer
    x = 7,467.39

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.