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Finding the Fourth Proportional to 18,039.98, 24,879.05 and 11,326.23

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Solution

The fourth proportional to 18,039.98, 24,879.05 and 11,326.23 is: 15,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.98 : 24,879.05 = 11,326.23 : x
  2. Step 2: Convert to fraction form
    18,039.98/24,879.05 = 11,326.23/x
  3. Step 3: Cross multiply
    18,039.98x = 24,879.05 × 11,326.23
  4. Step 4: Simplify right side
    18,039.98x = 281,785,785.85
  5. Step 5: Solve for x
    x = 281,785,785.85/18,039.98
  6. Step 6: Final answer
    x = 15,620.08

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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.