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Finding the Third Proportional to 1,467 and 2,790

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Solution

The third proportional to 1,467 and 2,790 is: 5,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467 : 2,790 = 2,790 : x
  2. Step 2: Convert to fraction form
    1,467/2,790 = 2,790/x
  3. Step 3: Cross multiply
    1,467x = 2,790 × 2,790
  4. Step 4: Simplify right side
    1,467x = 7,784,100
  5. Step 5: Solve for x
    x = 7,784,100/1,467
  6. Step 6: Final answer
    x = 5,306.13

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.