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Finding the Fourth Proportional to 12,226.98, 18,350.95 and 12,134.94

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Solution

The fourth proportional to 12,226.98, 18,350.95 and 12,134.94 is: 18,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.98 : 18,350.95 = 12,134.94 : x
  2. Step 2: Convert to fraction form
    12,226.98/18,350.95 = 12,134.94/x
  3. Step 3: Cross multiply
    12,226.98x = 18,350.95 × 12,134.94
  4. Step 4: Simplify right side
    12,226.98x = 222,687,646.86
  5. Step 5: Solve for x
    x = 222,687,646.86/12,226.98
  6. Step 6: Final answer
    x = 18,212.81

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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.