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Finding the Fourth Proportional to 8,177,190.30, 12,239,213.40 and 8,177,190.30

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Solution

The fourth proportional to 8,177,190.30, 12,239,213.40 and 8,177,190.30 is: 12,239,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177,190.30 : 12,239,213.40 = 8,177,190.30 : x
  2. Step 2: Convert to fraction form
    8,177,190.30/12,239,213.40 = 8,177,190.30/x
  3. Step 3: Cross multiply
    8,177,190.30x = 12,239,213.40 × 8,177,190.30
  4. Step 4: Simplify right side
    8,177,190.30x = 100,082,377,094,110.02
  5. Step 5: Solve for x
    x = 100,082,377,094,110.02/8,177,190.30
  6. Step 6: Final answer
    x = 12,239,213.40

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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.