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Finding the Fourth Proportional to 19,682,759.20, 29,524,138.80 and 9,065,927.20

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Solution

The fourth proportional to 19,682,759.20, 29,524,138.80 and 9,065,927.20 is: 13,598,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682,759.20 : 29,524,138.80 = 9,065,927.20 : x
  2. Step 2: Convert to fraction form
    19,682,759.20/29,524,138.80 = 9,065,927.20/x
  3. Step 3: Cross multiply
    19,682,759.20x = 29,524,138.80 × 9,065,927.20
  4. Step 4: Simplify right side
    19,682,759.20x = 267,663,693,003,495.34
  5. Step 5: Solve for x
    x = 267,663,693,003,495.34/19,682,759.20
  6. Step 6: Final answer
    x = 13,598,890.80

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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.