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Finding the Third Proportional to 1,977 and 2,951

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Solution

The third proportional to 1,977 and 2,951 is: 4,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977 : 2,951 = 2,951 : x
  2. Step 2: Convert to fraction form
    1,977/2,951 = 2,951/x
  3. Step 3: Cross multiply
    1,977x = 2,951 × 2,951
  4. Step 4: Simplify right side
    1,977x = 8,708,401
  5. Step 5: Solve for x
    x = 8,708,401/1,977
  6. Step 6: Final answer
    x = 4,404.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.