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Finding the Third Proportional to 1,704 and 2,670

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Solution

The third proportional to 1,704 and 2,670 is: 4,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704 : 2,670 = 2,670 : x
  2. Step 2: Convert to fraction form
    1,704/2,670 = 2,670/x
  3. Step 3: Cross multiply
    1,704x = 2,670 × 2,670
  4. Step 4: Simplify right side
    1,704x = 7,128,900
  5. Step 5: Solve for x
    x = 7,128,900/1,704
  6. Step 6: Final answer
    x = 4,183.63

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.