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Finding the Fourth Proportional to 18,391.77, 27,568.50 and 8,522.94

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Solution

The fourth proportional to 18,391.77, 27,568.50 and 8,522.94 is: 12,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.77 : 27,568.50 = 8,522.94 : x
  2. Step 2: Convert to fraction form
    18,391.77/27,568.50 = 8,522.94/x
  3. Step 3: Cross multiply
    18,391.77x = 27,568.50 × 8,522.94
  4. Step 4: Simplify right side
    18,391.77x = 234,964,671.39
  5. Step 5: Solve for x
    x = 234,964,671.39/18,391.77
  6. Step 6: Final answer
    x = 12,775.53

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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.