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Finding the Fourth Proportional to 43,745.99, 65,629.44 and 14,163.86

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Solution

The fourth proportional to 43,745.99, 65,629.44 and 14,163.86 is: 21,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,745.99 : 65,629.44 = 14,163.86 : x
  2. Step 2: Convert to fraction form
    43,745.99/65,629.44 = 14,163.86/x
  3. Step 3: Cross multiply
    43,745.99x = 65,629.44 × 14,163.86
  4. Step 4: Simplify right side
    43,745.99x = 929,565,801.07
  5. Step 5: Solve for x
    x = 929,565,801.07/43,745.99
  6. Step 6: Final answer
    x = 21,249.17

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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.