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Finding the Fourth Proportional to 18,394.34, 27,584.55 and 7,863.92

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Solution

The fourth proportional to 18,394.34, 27,584.55 and 7,863.92 is: 11,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.34 : 27,584.55 = 7,863.92 : x
  2. Step 2: Convert to fraction form
    18,394.34/27,584.55 = 7,863.92/x
  3. Step 3: Cross multiply
    18,394.34x = 27,584.55 × 7,863.92
  4. Step 4: Simplify right side
    18,394.34x = 216,922,694.44
  5. Step 5: Solve for x
    x = 216,922,694.44/18,394.34
  6. Step 6: Final answer
    x = 11,792.90

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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.