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Finding the Fourth Proportional to 18,216.88, 27,326.22 and 8,351.68

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Solution

The fourth proportional to 18,216.88, 27,326.22 and 8,351.68 is: 12,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.88 : 27,326.22 = 8,351.68 : x
  2. Step 2: Convert to fraction form
    18,216.88/27,326.22 = 8,351.68/x
  3. Step 3: Cross multiply
    18,216.88x = 27,326.22 × 8,351.68
  4. Step 4: Simplify right side
    18,216.88x = 228,219,845.05
  5. Step 5: Solve for x
    x = 228,219,845.05/18,216.88
  6. Step 6: Final answer
    x = 12,527.93

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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.