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Finding the Fourth Proportional to 8,691,794.70, 13,037,692.05 and 5,479,529.10

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Solution

The fourth proportional to 8,691,794.70, 13,037,692.05 and 5,479,529.10 is: 8,219,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,794.70 : 13,037,692.05 = 5,479,529.10 : x
  2. Step 2: Convert to fraction form
    8,691,794.70/13,037,692.05 = 5,479,529.10/x
  3. Step 3: Cross multiply
    8,691,794.70x = 13,037,692.05 × 5,479,529.10
  4. Step 4: Simplify right side
    8,691,794.70x = 71,440,412,984,813.66
  5. Step 5: Solve for x
    x = 71,440,412,984,813.66/8,691,794.70
  6. Step 6: Final answer
    x = 8,219,293.65

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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.