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Finding the Third Proportional to 1,081.22 and 1,626.63

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Solution

The third proportional to 1,081.22 and 1,626.63 is: 2,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.22 : 1,626.63 = 1,626.63 : x
  2. Step 2: Convert to fraction form
    1,081.22/1,626.63 = 1,626.63/x
  3. Step 3: Cross multiply
    1,081.22x = 1,626.63 × 1,626.63
  4. Step 4: Simplify right side
    1,081.22x = 2,645,940.26
  5. Step 5: Solve for x
    x = 2,645,940.26/1,081.22
  6. Step 6: Final answer
    x = 2,447.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.