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Finding the Fourth Proportional to 19,344.66, 29,021.86 and 5,493.66

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Solution

The fourth proportional to 19,344.66, 29,021.86 and 5,493.66 is: 8,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.66 : 29,021.86 = 5,493.66 : x
  2. Step 2: Convert to fraction form
    19,344.66/29,021.86 = 5,493.66/x
  3. Step 3: Cross multiply
    19,344.66x = 29,021.86 × 5,493.66
  4. Step 4: Simplify right side
    19,344.66x = 159,436,129.44
  5. Step 5: Solve for x
    x = 159,436,129.44/19,344.66
  6. Step 6: Final answer
    x = 8,241.87

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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.