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Finding the Third Proportional to 5,570 and 11,977

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Solution

The third proportional to 5,570 and 11,977 is: 25,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,570 : 11,977 = 11,977 : x
  2. Step 2: Convert to fraction form
    5,570/11,977 = 11,977/x
  3. Step 3: Cross multiply
    5,570x = 11,977 × 11,977
  4. Step 4: Simplify right side
    5,570x = 143,448,529
  5. Step 5: Solve for x
    x = 143,448,529/5,570
  6. Step 6: Final answer
    x = 25,753.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.