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Finding the Fourth Proportional to 18,168.21, 27,251.55 and 6,324.67

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Solution

The fourth proportional to 18,168.21, 27,251.55 and 6,324.67 is: 9,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.21 : 27,251.55 = 6,324.67 : x
  2. Step 2: Convert to fraction form
    18,168.21/27,251.55 = 6,324.67/x
  3. Step 3: Cross multiply
    18,168.21x = 27,251.55 × 6,324.67
  4. Step 4: Simplify right side
    18,168.21x = 172,357,060.74
  5. Step 5: Solve for x
    x = 172,357,060.74/18,168.21
  6. Step 6: Final answer
    x = 9,486.74

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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.