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Finding the Fourth Proportional to 8,859.92, 13,286.52 and 3,015.44

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Solution

The fourth proportional to 8,859.92, 13,286.52 and 3,015.44 is: 4,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.92 : 13,286.52 = 3,015.44 : x
  2. Step 2: Convert to fraction form
    8,859.92/13,286.52 = 3,015.44/x
  3. Step 3: Cross multiply
    8,859.92x = 13,286.52 × 3,015.44
  4. Step 4: Simplify right side
    8,859.92x = 40,064,703.87
  5. Step 5: Solve for x
    x = 40,064,703.87/8,859.92
  6. Step 6: Final answer
    x = 4,522.02

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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.