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Finding the Fourth Proportional to 43,382.36, 65,074.11 and 11,793.98

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Solution

The fourth proportional to 43,382.36, 65,074.11 and 11,793.98 is: 17,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,382.36 : 65,074.11 = 11,793.98 : x
  2. Step 2: Convert to fraction form
    43,382.36/65,074.11 = 11,793.98/x
  3. Step 3: Cross multiply
    43,382.36x = 65,074.11 × 11,793.98
  4. Step 4: Simplify right side
    43,382.36x = 767,482,751.86
  5. Step 5: Solve for x
    x = 767,482,751.86/43,382.36
  6. Step 6: Final answer
    x = 17,691.12

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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.