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Finding the Fourth Proportional to 7,908.62, 11,863.85 and 3,525.53

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Solution

The fourth proportional to 7,908.62, 11,863.85 and 3,525.53 is: 5,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.62 : 11,863.85 = 3,525.53 : x
  2. Step 2: Convert to fraction form
    7,908.62/11,863.85 = 3,525.53/x
  3. Step 3: Cross multiply
    7,908.62x = 11,863.85 × 3,525.53
  4. Step 4: Simplify right side
    7,908.62x = 41,826,282.14
  5. Step 5: Solve for x
    x = 41,826,282.14/7,908.62
  6. Step 6: Final answer
    x = 5,288.70

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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.