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Finding the Fourth Proportional to 8,529,984.75, 12,794,978.88 and 2,850,209.67

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Solution

The fourth proportional to 8,529,984.75, 12,794,978.88 and 2,850,209.67 is: 4,275,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529,984.75 : 12,794,978.88 = 2,850,209.67 : x
  2. Step 2: Convert to fraction form
    8,529,984.75/12,794,978.88 = 2,850,209.67/x
  3. Step 3: Cross multiply
    8,529,984.75x = 12,794,978.88 × 2,850,209.67
  4. Step 4: Simplify right side
    8,529,984.75x = 36,468,372,531,221.77
  5. Step 5: Solve for x
    x = 36,468,372,531,221.77/8,529,984.75
  6. Step 6: Final answer
    x = 4,275,315.09

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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.