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Finding the Fourth Proportional to 11,208,429.80, 16,786,072.65 and 11,208,429.80

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Solution

The fourth proportional to 11,208,429.80, 16,786,072.65 and 11,208,429.80 is: 16,786,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208,429.80 : 16,786,072.65 = 11,208,429.80 : x
  2. Step 2: Convert to fraction form
    11,208,429.80/16,786,072.65 = 11,208,429.80/x
  3. Step 3: Cross multiply
    11,208,429.80x = 16,786,072.65 × 11,208,429.80
  4. Step 4: Simplify right side
    11,208,429.80x = 188,145,516,915,224.97
  5. Step 5: Solve for x
    x = 188,145,516,915,224.97/11,208,429.80
  6. Step 6: Final answer
    x = 16,786,072.65

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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.