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Finding the Fourth Proportional to 18,157.34, 27,238.44 and 8,299.64

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Solution

The fourth proportional to 18,157.34, 27,238.44 and 8,299.64 is: 12,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.34 : 27,238.44 = 8,299.64 : x
  2. Step 2: Convert to fraction form
    18,157.34/27,238.44 = 8,299.64/x
  3. Step 3: Cross multiply
    18,157.34x = 27,238.44 × 8,299.64
  4. Step 4: Simplify right side
    18,157.34x = 226,069,246.16
  5. Step 5: Solve for x
    x = 226,069,246.16/18,157.34
  6. Step 6: Final answer
    x = 12,450.57

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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.