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Finding the Fourth Proportional to 8,196,891.60, 12,295,337.40 and 3,936,032.40

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Solution

The fourth proportional to 8,196,891.60, 12,295,337.40 and 3,936,032.40 is: 5,904,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196,891.60 : 12,295,337.40 = 3,936,032.40 : x
  2. Step 2: Convert to fraction form
    8,196,891.60/12,295,337.40 = 3,936,032.40/x
  3. Step 3: Cross multiply
    8,196,891.60x = 12,295,337.40 × 3,936,032.40
  4. Step 4: Simplify right side
    8,196,891.60x = 48,394,846,375,331.76
  5. Step 5: Solve for x
    x = 48,394,846,375,331.76/8,196,891.60
  6. Step 6: Final answer
    x = 5,904,048.60

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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.