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Finding the Fourth Proportional to 28,481.60, 39,296.02 and 16,542.64

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Solution

The fourth proportional to 28,481.60, 39,296.02 and 16,542.64 is: 22,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.60 : 39,296.02 = 16,542.64 : x
  2. Step 2: Convert to fraction form
    28,481.60/39,296.02 = 16,542.64/x
  3. Step 3: Cross multiply
    28,481.60x = 39,296.02 × 16,542.64
  4. Step 4: Simplify right side
    28,481.60x = 650,059,912.29
  5. Step 5: Solve for x
    x = 650,059,912.29/28,481.60
  6. Step 6: Final answer
    x = 22,823.86

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1.5x scale

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.