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Finding the Fourth Proportional to 18,289.92, 27,414.24 and 16,813.12

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Solution

The fourth proportional to 18,289.92, 27,414.24 and 16,813.12 is: 25,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.92 : 27,414.24 = 16,813.12 : x
  2. Step 2: Convert to fraction form
    18,289.92/27,414.24 = 16,813.12/x
  3. Step 3: Cross multiply
    18,289.92x = 27,414.24 × 16,813.12
  4. Step 4: Simplify right side
    18,289.92x = 460,918,906.83
  5. Step 5: Solve for x
    x = 460,918,906.83/18,289.92
  6. Step 6: Final answer
    x = 25,200.71

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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.