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Finding the Fourth Proportional to 45,572.92, 68,375.10 and 18,933.22

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Solution

The fourth proportional to 45,572.92, 68,375.10 and 18,933.22 is: 28,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,572.92 : 68,375.10 = 18,933.22 : x
  2. Step 2: Convert to fraction form
    45,572.92/68,375.10 = 18,933.22/x
  3. Step 3: Cross multiply
    45,572.92x = 68,375.10 × 18,933.22
  4. Step 4: Simplify right side
    45,572.92x = 1,294,560,468.95
  5. Step 5: Solve for x
    x = 1,294,560,468.95/45,572.92
  6. Step 6: Final answer
    x = 28,406.36

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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.