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Finding the Fourth Proportional to 18,149.76, 27,199.44 and 8,264.88

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Solution

The fourth proportional to 18,149.76, 27,199.44 and 8,264.88 is: 12,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.76 : 27,199.44 = 8,264.88 : x
  2. Step 2: Convert to fraction form
    18,149.76/27,199.44 = 8,264.88/x
  3. Step 3: Cross multiply
    18,149.76x = 27,199.44 × 8,264.88
  4. Step 4: Simplify right side
    18,149.76x = 224,800,107.67
  5. Step 5: Solve for x
    x = 224,800,107.67/18,149.76
  6. Step 6: Final answer
    x = 12,385.84

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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.