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Finding the Fourth Proportional to 19,720,100.70, 29,524,163.85 and 19,720,100.70

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Solution

The fourth proportional to 19,720,100.70, 29,524,163.85 and 19,720,100.70 is: 29,524,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,100.70 : 29,524,163.85 = 19,720,100.70 : x
  2. Step 2: Convert to fraction form
    19,720,100.70/29,524,163.85 = 19,720,100.70/x
  3. Step 3: Cross multiply
    19,720,100.70x = 29,524,163.85 × 19,720,100.70
  4. Step 4: Simplify right side
    19,720,100.70x = 582,219,484,205,299.75
  5. Step 5: Solve for x
    x = 582,219,484,205,299.75/19,720,100.70
  6. Step 6: Final answer
    x = 29,524,163.85

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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.