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Finding the Fourth Proportional to 18,648.14, 27,933.32 and 8,267.18

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Solution

The fourth proportional to 18,648.14, 27,933.32 and 8,267.18 is: 12,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.14 : 27,933.32 = 8,267.18 : x
  2. Step 2: Convert to fraction form
    18,648.14/27,933.32 = 8,267.18/x
  3. Step 3: Cross multiply
    18,648.14x = 27,933.32 × 8,267.18
  4. Step 4: Simplify right side
    18,648.14x = 230,929,665.44
  5. Step 5: Solve for x
    x = 230,929,665.44/18,648.14
  6. Step 6: Final answer
    x = 12,383.53

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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.