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Finding the Fourth Proportional to 18,014.94, 27,019.26 and 8,151.90

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Solution

The fourth proportional to 18,014.94, 27,019.26 and 8,151.90 is: 12,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.94 : 27,019.26 = 8,151.90 : x
  2. Step 2: Convert to fraction form
    18,014.94/27,019.26 = 8,151.90/x
  3. Step 3: Cross multiply
    18,014.94x = 27,019.26 × 8,151.90
  4. Step 4: Simplify right side
    18,014.94x = 220,258,305.59
  5. Step 5: Solve for x
    x = 220,258,305.59/18,014.94
  6. Step 6: Final answer
    x = 12,226.42

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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.