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Finding the Fourth Proportional to 18,224.52, 25,154.52 and 11,866.98

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Solution

The fourth proportional to 18,224.52, 25,154.52 and 11,866.98 is: 16,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,224.52 : 25,154.52 = 11,866.98 : x
  2. Step 2: Convert to fraction form
    18,224.52/25,154.52 = 11,866.98/x
  3. Step 3: Cross multiply
    18,224.52x = 25,154.52 × 11,866.98
  4. Step 4: Simplify right side
    18,224.52x = 298,508,135.92
  5. Step 5: Solve for x
    x = 298,508,135.92/18,224.52
  6. Step 6: Final answer
    x = 16,379.48

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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.