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Finding the Third Proportional to 2,190 and 3,467

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Solution

The third proportional to 2,190 and 3,467 is: 5,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190 : 3,467 = 3,467 : x
  2. Step 2: Convert to fraction form
    2,190/3,467 = 3,467/x
  3. Step 3: Cross multiply
    2,190x = 3,467 × 3,467
  4. Step 4: Simplify right side
    2,190x = 12,020,089
  5. Step 5: Solve for x
    x = 12,020,089/2,190
  6. Step 6: Final answer
    x = 5,488.63

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.