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Finding the Fourth Proportional to 18,022.56, 27,013.77 and 7,486.71

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Solution

The fourth proportional to 18,022.56, 27,013.77 and 7,486.71 is: 11,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,022.56 : 27,013.77 = 7,486.71 : x
  2. Step 2: Convert to fraction form
    18,022.56/27,013.77 = 7,486.71/x
  3. Step 3: Cross multiply
    18,022.56x = 27,013.77 × 7,486.71
  4. Step 4: Simplify right side
    18,022.56x = 202,244,262.00
  5. Step 5: Solve for x
    x = 202,244,262.00/18,022.56
  6. Step 6: Final answer
    x = 11,221.73

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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.