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Finding the Fourth Proportional to 5,473.97, 8,213.69 and 2,188

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Solution

The fourth proportional to 5,473.97, 8,213.69 and 2,188 is: 3,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.97 : 8,213.69 = 2,188 : x
  2. Step 2: Convert to fraction form
    5,473.97/8,213.69 = 2,188/x
  3. Step 3: Cross multiply
    5,473.97x = 8,213.69 × 2,188
  4. Step 4: Simplify right side
    5,473.97x = 17,971,553.72
  5. Step 5: Solve for x
    x = 17,971,553.72/5,473.97
  6. Step 6: Final answer
    x = 3,283.09

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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.