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Finding the Fourth Proportional to 29,249.67, 43,879.98 and 11,720.87

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Solution

The fourth proportional to 29,249.67, 43,879.98 and 11,720.87 is: 17,583.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,249.67 : 43,879.98 = 11,720.87 : x
  2. Step 2: Convert to fraction form
    29,249.67/43,879.98 = 11,720.87/x
  3. Step 3: Cross multiply
    29,249.67x = 43,879.98 × 11,720.87
  4. Step 4: Simplify right side
    29,249.67x = 514,311,442.38
  5. Step 5: Solve for x
    x = 514,311,442.38/29,249.67
  6. Step 6: Final answer
    x = 17,583.49

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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.