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Finding the Fourth Proportional to 18,226.56, 25,152.03 and 11,152.98

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Solution

The fourth proportional to 18,226.56, 25,152.03 and 11,152.98 is: 15,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.56 : 25,152.03 = 11,152.98 : x
  2. Step 2: Convert to fraction form
    18,226.56/25,152.03 = 11,152.98/x
  3. Step 3: Cross multiply
    18,226.56x = 25,152.03 × 11,152.98
  4. Step 4: Simplify right side
    18,226.56x = 280,520,087.55
  5. Step 5: Solve for x
    x = 280,520,087.55/18,226.56
  6. Step 6: Final answer
    x = 15,390.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.