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Finding the Fourth Proportional to 18,086.56, 24,976.56 and 11,813.92

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Solution

The fourth proportional to 18,086.56, 24,976.56 and 11,813.92 is: 16,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.56 : 24,976.56 = 11,813.92 : x
  2. Step 2: Convert to fraction form
    18,086.56/24,976.56 = 11,813.92/x
  3. Step 3: Cross multiply
    18,086.56x = 24,976.56 × 11,813.92
  4. Step 4: Simplify right side
    18,086.56x = 295,071,081.72
  5. Step 5: Solve for x
    x = 295,071,081.72/18,086.56
  6. Step 6: Final answer
    x = 16,314.38

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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.