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Finding the Fourth Proportional to 18,149.46, 27,225.18 and 5,671.20

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Solution

The fourth proportional to 18,149.46, 27,225.18 and 5,671.20 is: 8,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.46 : 27,225.18 = 5,671.20 : x
  2. Step 2: Convert to fraction form
    18,149.46/27,225.18 = 5,671.20/x
  3. Step 3: Cross multiply
    18,149.46x = 27,225.18 × 5,671.20
  4. Step 4: Simplify right side
    18,149.46x = 154,399,440.82
  5. Step 5: Solve for x
    x = 154,399,440.82/18,149.46
  6. Step 6: Final answer
    x = 8,507.11

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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.