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Finding the Third Proportional to 665.44 and 1,447.03

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Solution

The third proportional to 665.44 and 1,447.03 is: 3,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.44 : 1,447.03 = 1,447.03 : x
  2. Step 2: Convert to fraction form
    665.44/1,447.03 = 1,447.03/x
  3. Step 3: Cross multiply
    665.44x = 1,447.03 × 1,447.03
  4. Step 4: Simplify right side
    665.44x = 2,093,899.44
  5. Step 5: Solve for x
    x = 2,093,899.44/665.44
  6. Step 6: Final answer
    x = 3,146.65

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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.