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Finding the Fourth Proportional to 29,661.21, 40,932.60 and 16,232.43

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Solution

The fourth proportional to 29,661.21, 40,932.60 and 16,232.43 is: 22,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,661.21 : 40,932.60 = 16,232.43 : x
  2. Step 2: Convert to fraction form
    29,661.21/40,932.60 = 16,232.43/x
  3. Step 3: Cross multiply
    29,661.21x = 40,932.60 × 16,232.43
  4. Step 4: Simplify right side
    29,661.21x = 664,435,564.22
  5. Step 5: Solve for x
    x = 664,435,564.22/29,661.21
  6. Step 6: Final answer
    x = 22,400.82

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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.