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Finding the Fourth Proportional to 18,238.44, 27,351.18 and 8,878.44

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Solution

The fourth proportional to 18,238.44, 27,351.18 and 8,878.44 is: 13,314.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.44 : 27,351.18 = 8,878.44 : x
  2. Step 2: Convert to fraction form
    18,238.44/27,351.18 = 8,878.44/x
  3. Step 3: Cross multiply
    18,238.44x = 27,351.18 × 8,878.44
  4. Step 4: Simplify right side
    18,238.44x = 242,835,810.56
  5. Step 5: Solve for x
    x = 242,835,810.56/18,238.44
  6. Step 6: Final answer
    x = 13,314.51

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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.