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Finding the Fourth Proportional to 7,287.82, 10,928.23 and 3,337.85

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Solution

The fourth proportional to 7,287.82, 10,928.23 and 3,337.85 is: 5,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.82 : 10,928.23 = 3,337.85 : x
  2. Step 2: Convert to fraction form
    7,287.82/10,928.23 = 3,337.85/x
  3. Step 3: Cross multiply
    7,287.82x = 10,928.23 × 3,337.85
  4. Step 4: Simplify right side
    7,287.82x = 36,476,811.48
  5. Step 5: Solve for x
    x = 36,476,811.48/7,287.82
  6. Step 6: Final answer
    x = 5,005.18

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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.