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Finding the Fourth Proportional to 11,684.52, 17,516.97 and 5,105.70

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Solution

The fourth proportional to 11,684.52, 17,516.97 and 5,105.70 is: 7,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.52 : 17,516.97 = 5,105.70 : x
  2. Step 2: Convert to fraction form
    11,684.52/17,516.97 = 5,105.70/x
  3. Step 3: Cross multiply
    11,684.52x = 17,516.97 × 5,105.70
  4. Step 4: Simplify right side
    11,684.52x = 89,436,393.73
  5. Step 5: Solve for x
    x = 89,436,393.73/11,684.52
  6. Step 6: Final answer
    x = 7,654.26

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1.5x scale

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.