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Finding the Third Proportional to 805.50 and 1,730.25

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Solution

The third proportional to 805.50 and 1,730.25 is: 3,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.50 : 1,730.25 = 1,730.25 : x
  2. Step 2: Convert to fraction form
    805.50/1,730.25 = 1,730.25/x
  3. Step 3: Cross multiply
    805.50x = 1,730.25 × 1,730.25
  4. Step 4: Simplify right side
    805.50x = 2,993,765.06
  5. Step 5: Solve for x
    x = 2,993,765.06/805.50
  6. Step 6: Final answer
    x = 3,716.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.