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Finding the Fourth Proportional to 5,505,129.72, 8,257,694.60 and 5,505,129.72

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Solution

The fourth proportional to 5,505,129.72, 8,257,694.60 and 5,505,129.72 is: 8,257,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505,129.72 : 8,257,694.60 = 5,505,129.72 : x
  2. Step 2: Convert to fraction form
    5,505,129.72/8,257,694.60 = 5,505,129.72/x
  3. Step 3: Cross multiply
    5,505,129.72x = 8,257,694.60 × 5,505,129.72
  4. Step 4: Simplify right side
    5,505,129.72x = 45,459,679,933,617.86
  5. Step 5: Solve for x
    x = 45,459,679,933,617.86/5,505,129.72
  6. Step 6: Final answer
    x = 8,257,694.60

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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.