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Finding the Fourth Proportional to 18,321.21, 27,484.02 and 5,836.86

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Solution

The fourth proportional to 18,321.21, 27,484.02 and 5,836.86 is: 8,755.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.21 : 27,484.02 = 5,836.86 : x
  2. Step 2: Convert to fraction form
    18,321.21/27,484.02 = 5,836.86/x
  3. Step 3: Cross multiply
    18,321.21x = 27,484.02 × 5,836.86
  4. Step 4: Simplify right side
    18,321.21x = 160,420,376.98
  5. Step 5: Solve for x
    x = 160,420,376.98/18,321.21
  6. Step 6: Final answer
    x = 8,755.99

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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.