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Finding the Fourth Proportional to 18,329.64, 27,472.82 and 7,793.31

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Solution

The fourth proportional to 18,329.64, 27,472.82 and 7,793.31 is: 11,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.64 : 27,472.82 = 7,793.31 : x
  2. Step 2: Convert to fraction form
    18,329.64/27,472.82 = 7,793.31/x
  3. Step 3: Cross multiply
    18,329.64x = 27,472.82 × 7,793.31
  4. Step 4: Simplify right side
    18,329.64x = 214,104,310.73
  5. Step 5: Solve for x
    x = 214,104,310.73/18,329.64
  6. Step 6: Final answer
    x = 11,680.77

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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.