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Finding the Fourth Proportional to 18,158.55, 27,248.24 and 7,063.82

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Solution

The fourth proportional to 18,158.55, 27,248.24 and 7,063.82 is: 10,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.55 : 27,248.24 = 7,063.82 : x
  2. Step 2: Convert to fraction form
    18,158.55/27,248.24 = 7,063.82/x
  3. Step 3: Cross multiply
    18,158.55x = 27,248.24 × 7,063.82
  4. Step 4: Simplify right side
    18,158.55x = 192,476,634.93
  5. Step 5: Solve for x
    x = 192,476,634.93/18,158.55
  6. Step 6: Final answer
    x = 10,599.78

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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.