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Finding the Fourth Proportional to 8,449,334.80, 12,674,002.20 and 8,150,736.40

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Solution

The fourth proportional to 8,449,334.80, 12,674,002.20 and 8,150,736.40 is: 12,226,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449,334.80 : 12,674,002.20 = 8,150,736.40 : x
  2. Step 2: Convert to fraction form
    8,449,334.80/12,674,002.20 = 8,150,736.40/x
  3. Step 3: Cross multiply
    8,449,334.80x = 12,674,002.20 × 8,150,736.40
  4. Step 4: Simplify right side
    8,449,334.80x = 103,302,451,065,220.08
  5. Step 5: Solve for x
    x = 103,302,451,065,220.08/8,449,334.80
  6. Step 6: Final answer
    x = 12,226,104.60

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Similar ratio
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1.5x scale

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.