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Finding the Fourth Proportional to 18,624.38, 27,936.34 and 7,530.98

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Solution

The fourth proportional to 18,624.38, 27,936.34 and 7,530.98 is: 11,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.38 : 27,936.34 = 7,530.98 : x
  2. Step 2: Convert to fraction form
    18,624.38/27,936.34 = 7,530.98/x
  3. Step 3: Cross multiply
    18,624.38x = 27,936.34 × 7,530.98
  4. Step 4: Simplify right side
    18,624.38x = 210,387,859.30
  5. Step 5: Solve for x
    x = 210,387,859.30/18,624.38
  6. Step 6: Final answer
    x = 11,296.37

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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.