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Finding the Fourth Proportional to 18,794,741.80, 28,192,112.70 and 11,236,469.80

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Solution

The fourth proportional to 18,794,741.80, 28,192,112.70 and 11,236,469.80 is: 16,854,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794,741.80 : 28,192,112.70 = 11,236,469.80 : x
  2. Step 2: Convert to fraction form
    18,794,741.80/28,192,112.70 = 11,236,469.80/x
  3. Step 3: Cross multiply
    18,794,741.80x = 28,192,112.70 × 11,236,469.80
  4. Step 4: Simplify right side
    18,794,741.80x = 316,779,822,951,746.50
  5. Step 5: Solve for x
    x = 316,779,822,951,746.50/18,794,741.80
  6. Step 6: Final answer
    x = 16,854,704.70

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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.