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Finding the Fourth Proportional to 7,175,469.72, 9,944,892.09 and 7,041,100.44

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Solution

The fourth proportional to 7,175,469.72, 9,944,892.09 and 7,041,100.44 is: 9,758,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175,469.72 : 9,944,892.09 = 7,041,100.44 : x
  2. Step 2: Convert to fraction form
    7,175,469.72/9,944,892.09 = 7,041,100.44/x
  3. Step 3: Cross multiply
    7,175,469.72x = 9,944,892.09 × 7,041,100.44
  4. Step 4: Simplify right side
    7,175,469.72x = 70,022,984,070,651.52
  5. Step 5: Solve for x
    x = 70,022,984,070,651.52/7,175,469.72
  6. Step 6: Final answer
    x = 9,758,662.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.