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Finding the Fourth Proportional to 17,318.70, 25,984.08 and 5,474.28

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Solution

The fourth proportional to 17,318.70, 25,984.08 and 5,474.28 is: 8,213.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,318.70 : 25,984.08 = 5,474.28 : x
  2. Step 2: Convert to fraction form
    17,318.70/25,984.08 = 5,474.28/x
  3. Step 3: Cross multiply
    17,318.70x = 25,984.08 × 5,474.28
  4. Step 4: Simplify right side
    17,318.70x = 142,244,129.46
  5. Step 5: Solve for x
    x = 142,244,129.46/17,318.70
  6. Step 6: Final answer
    x = 8,213.33

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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.