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Finding the Fourth Proportional to 45,788.80, 68,691.30 and 16,223.80

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Solution

The fourth proportional to 45,788.80, 68,691.30 and 16,223.80 is: 24,338.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,788.80 : 68,691.30 = 16,223.80 : x
  2. Step 2: Convert to fraction form
    45,788.80/68,691.30 = 16,223.80/x
  3. Step 3: Cross multiply
    45,788.80x = 68,691.30 × 16,223.80
  4. Step 4: Simplify right side
    45,788.80x = 1,114,433,912.94
  5. Step 5: Solve for x
    x = 1,114,433,912.94/45,788.80
  6. Step 6: Final answer
    x = 24,338.57

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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.