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Finding the Third Proportional to 1,668 and 3,624

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Solution

The third proportional to 1,668 and 3,624 is: 7,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668 : 3,624 = 3,624 : x
  2. Step 2: Convert to fraction form
    1,668/3,624 = 3,624/x
  3. Step 3: Cross multiply
    1,668x = 3,624 × 3,624
  4. Step 4: Simplify right side
    1,668x = 13,133,376
  5. Step 5: Solve for x
    x = 13,133,376/1,668
  6. Step 6: Final answer
    x = 7,873.73

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.