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Finding the Fourth Proportional to 67,474, 101,211 and 18,226

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Solution

The fourth proportional to 67,474, 101,211 and 18,226 is: 27,339

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,474 : 101,211 = 18,226 : x
  2. Step 2: Convert to fraction form
    67,474/101,211 = 18,226/x
  3. Step 3: Cross multiply
    67,474x = 101,211 × 18,226
  4. Step 4: Simplify right side
    67,474x = 1,844,671,686
  5. Step 5: Solve for x
    x = 1,844,671,686/67,474
  6. Step 6: Final answer
    x = 27,339

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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.