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Finding the Fourth Proportional to 18,324.88, 27,490.98 and 7,794.84

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Solution

The fourth proportional to 18,324.88, 27,490.98 and 7,794.84 is: 11,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.88 : 27,490.98 = 7,794.84 : x
  2. Step 2: Convert to fraction form
    18,324.88/27,490.98 = 7,794.84/x
  3. Step 3: Cross multiply
    18,324.88x = 27,490.98 × 7,794.84
  4. Step 4: Simplify right side
    18,324.88x = 214,287,790.54
  5. Step 5: Solve for x
    x = 214,287,790.54/18,324.88
  6. Step 6: Final answer
    x = 11,693.82

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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.