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Finding the Fourth Proportional to 11,192,404.80, 16,788,607.20 and 8,505,019.20

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Solution

The fourth proportional to 11,192,404.80, 16,788,607.20 and 8,505,019.20 is: 12,757,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,192,404.80 : 16,788,607.20 = 8,505,019.20 : x
  2. Step 2: Convert to fraction form
    11,192,404.80/16,788,607.20 = 8,505,019.20/x
  3. Step 3: Cross multiply
    11,192,404.80x = 16,788,607.20 × 8,505,019.20
  4. Step 4: Simplify right side
    11,192,404.80x = 142,787,426,577,258.22
  5. Step 5: Solve for x
    x = 142,787,426,577,258.22/11,192,404.80
  6. Step 6: Final answer
    x = 12,757,528.80

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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.