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Finding the Third Proportional to 3,217.22 and 4,842.28

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Solution

The third proportional to 3,217.22 and 4,842.28 is: 7,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.22 : 4,842.28 = 4,842.28 : x
  2. Step 2: Convert to fraction form
    3,217.22/4,842.28 = 4,842.28/x
  3. Step 3: Cross multiply
    3,217.22x = 4,842.28 × 4,842.28
  4. Step 4: Simplify right side
    3,217.22x = 23,447,687.70
  5. Step 5: Solve for x
    x = 23,447,687.70/3,217.22
  6. Step 6: Final answer
    x = 7,288.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.