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Finding the Fourth Proportional to 18,588.78, 27,873.92 and 5,936.87

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Solution

The fourth proportional to 18,588.78, 27,873.92 and 5,936.87 is: 8,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.78 : 27,873.92 = 5,936.87 : x
  2. Step 2: Convert to fraction form
    18,588.78/27,873.92 = 5,936.87/x
  3. Step 3: Cross multiply
    18,588.78x = 27,873.92 × 5,936.87
  4. Step 4: Simplify right side
    18,588.78x = 165,483,670.38
  5. Step 5: Solve for x
    x = 165,483,670.38/18,588.78
  6. Step 6: Final answer
    x = 8,902.34

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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.