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Finding the Third Proportional to 3,327.19 and 5,120.16

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Solution

The third proportional to 3,327.19 and 5,120.16 is: 7,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.19 : 5,120.16 = 5,120.16 : x
  2. Step 2: Convert to fraction form
    3,327.19/5,120.16 = 5,120.16/x
  3. Step 3: Cross multiply
    3,327.19x = 5,120.16 × 5,120.16
  4. Step 4: Simplify right side
    3,327.19x = 26,216,000.02
  5. Step 5: Solve for x
    x = 26,216,000.02/3,327.19
  6. Step 6: Final answer
    x = 7,879.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.