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Finding the Fourth Proportional to 8,555,791.02, 12,833,548.83 and 2,078,917.62

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Solution

The fourth proportional to 8,555,791.02, 12,833,548.83 and 2,078,917.62 is: 3,118,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555,791.02 : 12,833,548.83 = 2,078,917.62 : x
  2. Step 2: Convert to fraction form
    8,555,791.02/12,833,548.83 = 2,078,917.62/x
  3. Step 3: Cross multiply
    8,555,791.02x = 12,833,548.83 × 2,078,917.62
  4. Step 4: Simplify right side
    8,555,791.02x = 26,679,890,789,817.39
  5. Step 5: Solve for x
    x = 26,679,890,789,817.39/8,555,791.02
  6. Step 6: Final answer
    x = 3,118,342.97

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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.