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Finding the Fourth Proportional to 5,505,087.45, 8,257,631.18 and 5,505,087.45

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Solution

The fourth proportional to 5,505,087.45, 8,257,631.18 and 5,505,087.45 is: 8,257,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505,087.45 : 8,257,631.18 = 5,505,087.45 : x
  2. Step 2: Convert to fraction form
    5,505,087.45/8,257,631.18 = 5,505,087.45/x
  3. Step 3: Cross multiply
    5,505,087.45x = 8,257,631.18 × 5,505,087.45
  4. Step 4: Simplify right side
    5,505,087.45x = 45,458,981,748,221.26
  5. Step 5: Solve for x
    x = 45,458,981,748,221.26/5,505,087.45
  6. Step 6: Final answer
    x = 8,257,631.18

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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.