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Finding the Fourth Proportional to 7,497.82, 11,247 and 3,789.64

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Solution

The fourth proportional to 7,497.82, 11,247 and 3,789.64 is: 5,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,497.82 : 11,247 = 3,789.64 : x
  2. Step 2: Convert to fraction form
    7,497.82/11,247 = 3,789.64/x
  3. Step 3: Cross multiply
    7,497.82x = 11,247 × 3,789.64
  4. Step 4: Simplify right side
    7,497.82x = 42,622,081.08
  5. Step 5: Solve for x
    x = 42,622,081.08/7,497.82
  6. Step 6: Final answer
    x = 5,684.60

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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.