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Finding the Fourth Proportional to 18,658.44, 27,994.14 and 8,277.48

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Solution

The fourth proportional to 18,658.44, 27,994.14 and 8,277.48 is: 12,419.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.44 : 27,994.14 = 8,277.48 : x
  2. Step 2: Convert to fraction form
    18,658.44/27,994.14 = 8,277.48/x
  3. Step 3: Cross multiply
    18,658.44x = 27,994.14 × 8,277.48
  4. Step 4: Simplify right side
    18,658.44x = 231,720,933.97
  5. Step 5: Solve for x
    x = 231,720,933.97/18,658.44
  6. Step 6: Final answer
    x = 12,419.09

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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.