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Finding the Fourth Proportional to 13,992,404.20, 20,992,292.70 and 5,016,020.20

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Solution

The fourth proportional to 13,992,404.20, 20,992,292.70 and 5,016,020.20 is: 7,525,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992,404.20 : 20,992,292.70 = 5,016,020.20 : x
  2. Step 2: Convert to fraction form
    13,992,404.20/20,992,292.70 = 5,016,020.20/x
  3. Step 3: Cross multiply
    13,992,404.20x = 20,992,292.70 × 5,016,020.20
  4. Step 4: Simplify right side
    13,992,404.20x = 105,297,764,227,512.55
  5. Step 5: Solve for x
    x = 105,297,764,227,512.55/13,992,404.20
  6. Step 6: Final answer
    x = 7,525,351.81

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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.