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Finding the Third Proportional to 792 and 1,201

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Solution

The third proportional to 792 and 1,201 is: 1,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    792 : 1,201 = 1,201 : x
  2. Step 2: Convert to fraction form
    792/1,201 = 1,201/x
  3. Step 3: Cross multiply
    792x = 1,201 × 1,201
  4. Step 4: Simplify right side
    792x = 1,442,401
  5. Step 5: Solve for x
    x = 1,442,401/792
  6. Step 6: Final answer
    x = 1,821.21

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.