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Finding the Fourth Proportional to 29,253.48, 43,899.42 and 21,438.44

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Solution

The fourth proportional to 29,253.48, 43,899.42 and 21,438.44 is: 32,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,253.48 : 43,899.42 = 21,438.44 : x
  2. Step 2: Convert to fraction form
    29,253.48/43,899.42 = 21,438.44/x
  3. Step 3: Cross multiply
    29,253.48x = 43,899.42 × 21,438.44
  4. Step 4: Simplify right side
    29,253.48x = 941,135,081.70
  5. Step 5: Solve for x
    x = 941,135,081.70/29,253.48
  6. Step 6: Final answer
    x = 32,171.73

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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.