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Finding the Fourth Proportional to 28,793.58, 39,734.60 and 16,046.49

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Solution

The fourth proportional to 28,793.58, 39,734.60 and 16,046.49 is: 22,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.58 : 39,734.60 = 16,046.49 : x
  2. Step 2: Convert to fraction form
    28,793.58/39,734.60 = 16,046.49/x
  3. Step 3: Cross multiply
    28,793.58x = 39,734.60 × 16,046.49
  4. Step 4: Simplify right side
    28,793.58x = 637,600,861.55
  5. Step 5: Solve for x
    x = 637,600,861.55/28,793.58
  6. Step 6: Final answer
    x = 22,143.86

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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.