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Finding the Fourth Proportional to 18,665.01, 27,997.08 and 7,568.73

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Solution

The fourth proportional to 18,665.01, 27,997.08 and 7,568.73 is: 11,352.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.01 : 27,997.08 = 7,568.73 : x
  2. Step 2: Convert to fraction form
    18,665.01/27,997.08 = 7,568.73/x
  3. Step 3: Cross multiply
    18,665.01x = 27,997.08 × 7,568.73
  4. Step 4: Simplify right side
    18,665.01x = 211,902,339.31
  5. Step 5: Solve for x
    x = 211,902,339.31/18,665.01
  6. Step 6: Final answer
    x = 11,352.92

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Double scale
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Similar ratio
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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.