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Finding the Fourth Proportional to 12,469,751.70, 18,704,627.55 and 12,096,503.70

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Solution

The fourth proportional to 12,469,751.70, 18,704,627.55 and 12,096,503.70 is: 18,144,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,751.70 : 18,704,627.55 = 12,096,503.70 : x
  2. Step 2: Convert to fraction form
    12,469,751.70/18,704,627.55 = 12,096,503.70/x
  3. Step 3: Cross multiply
    12,469,751.70x = 18,704,627.55 × 12,096,503.70
  4. Step 4: Simplify right side
    12,469,751.70x = 226,260,596,365,696.94
  5. Step 5: Solve for x
    x = 226,260,596,365,696.94/12,469,751.70
  6. Step 6: Final answer
    x = 18,144,755.55

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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.