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Finding the Fourth Proportional to 18,933,793.20, 28,400,689.80 and 16,595,452.80

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Solution

The fourth proportional to 18,933,793.20, 28,400,689.80 and 16,595,452.80 is: 24,893,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933,793.20 : 28,400,689.80 = 16,595,452.80 : x
  2. Step 2: Convert to fraction form
    18,933,793.20/28,400,689.80 = 16,595,452.80/x
  3. Step 3: Cross multiply
    18,933,793.20x = 28,400,689.80 × 16,595,452.80
  4. Step 4: Simplify right side
    18,933,793.20x = 471,322,307,063,341.50
  5. Step 5: Solve for x
    x = 471,322,307,063,341.50/18,933,793.20
  6. Step 6: Final answer
    x = 24,893,179.20

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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.