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Finding the Fourth Proportional to 6,658,900.20, 9,973,604.70 and 5,479,252.20

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Solution

The fourth proportional to 6,658,900.20, 9,973,604.70 and 5,479,252.20 is: 8,206,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658,900.20 : 9,973,604.70 = 5,479,252.20 : x
  2. Step 2: Convert to fraction form
    6,658,900.20/9,973,604.70 = 5,479,252.20/x
  3. Step 3: Cross multiply
    6,658,900.20x = 9,973,604.70 × 5,479,252.20
  4. Step 4: Simplify right side
    6,658,900.20x = 54,647,895,494,405.34
  5. Step 5: Solve for x
    x = 54,647,895,494,405.34/6,658,900.20
  6. Step 6: Final answer
    x = 8,206,744.94

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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.