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Finding the Fourth Proportional to 29,469.17, 40,672.73 and 18,858.44

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Solution

The fourth proportional to 29,469.17, 40,672.73 and 18,858.44 is: 26,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,469.17 : 40,672.73 = 18,858.44 : x
  2. Step 2: Convert to fraction form
    29,469.17/40,672.73 = 18,858.44/x
  3. Step 3: Cross multiply
    29,469.17x = 40,672.73 × 18,858.44
  4. Step 4: Simplify right side
    29,469.17x = 767,024,144.05
  5. Step 5: Solve for x
    x = 767,024,144.05/29,469.17
  6. Step 6: Final answer
    x = 26,028.02

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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.