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Finding the Third Proportional to 1,674.21 and 3,679.17

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Solution

The third proportional to 1,674.21 and 3,679.17 is: 8,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.21 : 3,679.17 = 3,679.17 : x
  2. Step 2: Convert to fraction form
    1,674.21/3,679.17 = 3,679.17/x
  3. Step 3: Cross multiply
    1,674.21x = 3,679.17 × 3,679.17
  4. Step 4: Simplify right side
    1,674.21x = 13,536,305.69
  5. Step 5: Solve for x
    x = 13,536,305.69/1,674.21
  6. Step 6: Final answer
    x = 8,085.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.