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Finding the Fourth Proportional to 7,380,212.80, 11,074,984.80 and 4,347,572.80

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Solution

The fourth proportional to 7,380,212.80, 11,074,984.80 and 4,347,572.80 is: 6,524,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380,212.80 : 11,074,984.80 = 4,347,572.80 : x
  2. Step 2: Convert to fraction form
    7,380,212.80/11,074,984.80 = 4,347,572.80/x
  3. Step 3: Cross multiply
    7,380,212.80x = 11,074,984.80 × 4,347,572.80
  4. Step 4: Simplify right side
    7,380,212.80x = 48,149,302,676,893.44
  5. Step 5: Solve for x
    x = 48,149,302,676,893.44/7,380,212.80
  6. Step 6: Final answer
    x = 6,524,107.64

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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.