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Finding the Third Proportional to 2,998 and 7,057

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Solution

The third proportional to 2,998 and 7,057 is: 16,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998 : 7,057 = 7,057 : x
  2. Step 2: Convert to fraction form
    2,998/7,057 = 7,057/x
  3. Step 3: Cross multiply
    2,998x = 7,057 × 7,057
  4. Step 4: Simplify right side
    2,998x = 49,801,249
  5. Step 5: Solve for x
    x = 49,801,249/2,998
  6. Step 6: Final answer
    x = 16,611.49

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.