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Finding the Fourth Proportional to 18,294.44, 27,479.16 and 12,063.44

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Solution

The fourth proportional to 18,294.44, 27,479.16 and 12,063.44 is: 18,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.44 : 27,479.16 = 12,063.44 : x
  2. Step 2: Convert to fraction form
    18,294.44/27,479.16 = 12,063.44/x
  3. Step 3: Cross multiply
    18,294.44x = 27,479.16 × 12,063.44
  4. Step 4: Simplify right side
    18,294.44x = 331,493,197.91
  5. Step 5: Solve for x
    x = 331,493,197.91/18,294.44
  6. Step 6: Final answer
    x = 18,119.89

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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.