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Finding the Fourth Proportional to 7,659,739.20, 11,489,608.80 and 4,468,468.80

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Solution

The fourth proportional to 7,659,739.20, 11,489,608.80 and 4,468,468.80 is: 6,702,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659,739.20 : 11,489,608.80 = 4,468,468.80 : x
  2. Step 2: Convert to fraction form
    7,659,739.20/11,489,608.80 = 4,468,468.80/x
  3. Step 3: Cross multiply
    7,659,739.20x = 11,489,608.80 × 4,468,468.80
  4. Step 4: Simplify right side
    7,659,739.20x = 51,340,958,447,005.44
  5. Step 5: Solve for x
    x = 51,340,958,447,005.44/7,659,739.20
  6. Step 6: Final answer
    x = 6,702,703.20

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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.