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Finding the Fourth Proportional to 18,318.29, 27,464.94 and 8,452.08

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Solution

The fourth proportional to 18,318.29, 27,464.94 and 8,452.08 is: 12,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.29 : 27,464.94 = 8,452.08 : x
  2. Step 2: Convert to fraction form
    18,318.29/27,464.94 = 8,452.08/x
  3. Step 3: Cross multiply
    18,318.29x = 27,464.94 × 8,452.08
  4. Step 4: Simplify right side
    18,318.29x = 232,135,870.08
  5. Step 5: Solve for x
    x = 232,135,870.08/18,318.29
  6. Step 6: Final answer
    x = 12,672.36

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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.