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Finding the Third Proportional to 771 and 1,773

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Solution

The third proportional to 771 and 1,773 is: 4,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    771 : 1,773 = 1,773 : x
  2. Step 2: Convert to fraction form
    771/1,773 = 1,773/x
  3. Step 3: Cross multiply
    771x = 1,773 × 1,773
  4. Step 4: Simplify right side
    771x = 3,143,529
  5. Step 5: Solve for x
    x = 3,143,529/771
  6. Step 6: Final answer
    x = 4,077.21

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.