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Finding the Fourth Proportional to 18,794,987.70, 28,192,481.55 and 16,555,499.70

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Solution

The fourth proportional to 18,794,987.70, 28,192,481.55 and 16,555,499.70 is: 24,833,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794,987.70 : 28,192,481.55 = 16,555,499.70 : x
  2. Step 2: Convert to fraction form
    18,794,987.70/28,192,481.55 = 16,555,499.70/x
  3. Step 3: Cross multiply
    18,794,987.70x = 28,192,481.55 × 16,555,499.70
  4. Step 4: Simplify right side
    18,794,987.70x = 466,740,619,843,280.50
  5. Step 5: Solve for x
    x = 466,740,619,843,280.50/18,794,987.70
  6. Step 6: Final answer
    x = 24,833,249.55

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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.