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Finding the Fourth Proportional to 43,879.91, 65,825.04 and 15,408.14

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Solution

The fourth proportional to 43,879.91, 65,825.04 and 15,408.14 is: 23,114.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,879.91 : 65,825.04 = 15,408.14 : x
  2. Step 2: Convert to fraction form
    43,879.91/65,825.04 = 15,408.14/x
  3. Step 3: Cross multiply
    43,879.91x = 65,825.04 × 15,408.14
  4. Step 4: Simplify right side
    43,879.91x = 1,014,241,102.70
  5. Step 5: Solve for x
    x = 1,014,241,102.70/43,879.91
  6. Step 6: Final answer
    x = 23,114.02

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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.