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Finding the Fourth Proportional to 18,262.66, 27,422.79 and 11,367.94

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Solution

The fourth proportional to 18,262.66, 27,422.79 and 11,367.94 is: 17,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.66 : 27,422.79 = 11,367.94 : x
  2. Step 2: Convert to fraction form
    18,262.66/27,422.79 = 11,367.94/x
  3. Step 3: Cross multiply
    18,262.66x = 27,422.79 × 11,367.94
  4. Step 4: Simplify right side
    18,262.66x = 311,740,631.35
  5. Step 5: Solve for x
    x = 311,740,631.35/18,262.66
  6. Step 6: Final answer
    x = 17,069.84

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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.