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Finding the Fourth Proportional to 3,670,211.68, 5,505,317.51 and 3,670,211.68

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Solution

The fourth proportional to 3,670,211.68, 5,505,317.51 and 3,670,211.68 is: 5,505,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,211.68 : 5,505,317.51 = 3,670,211.68 : x
  2. Step 2: Convert to fraction form
    3,670,211.68/5,505,317.51 = 3,670,211.68/x
  3. Step 3: Cross multiply
    3,670,211.68x = 5,505,317.51 × 3,670,211.68
  4. Step 4: Simplify right side
    3,670,211.68x = 20,205,680,627,310.52
  5. Step 5: Solve for x
    x = 20,205,680,627,310.52/3,670,211.68
  6. Step 6: Final answer
    x = 5,505,317.51

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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.