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Finding the Fourth Proportional to 7,841,906.80, 11,762,860.20 and 2,084,629.30

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Solution

The fourth proportional to 7,841,906.80, 11,762,860.20 and 2,084,629.30 is: 3,126,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841,906.80 : 11,762,860.20 = 2,084,629.30 : x
  2. Step 2: Convert to fraction form
    7,841,906.80/11,762,860.20 = 2,084,629.30/x
  3. Step 3: Cross multiply
    7,841,906.80x = 11,762,860.20 × 2,084,629.30
  4. Step 4: Simplify right side
    7,841,906.80x = 24,521,203,024,723.86
  5. Step 5: Solve for x
    x = 24,521,203,024,723.86/7,841,906.80
  6. Step 6: Final answer
    x = 3,126,943.95

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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.