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Finding the Fourth Proportional to 5,505,390.15, 8,242,338.83 and 5,505,390.15

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Solution

The fourth proportional to 5,505,390.15, 8,242,338.83 and 5,505,390.15 is: 8,242,338.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505,390.15 : 8,242,338.83 = 5,505,390.15 : x
  2. Step 2: Convert to fraction form
    5,505,390.15/8,242,338.83 = 5,505,390.15/x
  3. Step 3: Cross multiply
    5,505,390.15x = 8,242,338.83 × 5,505,390.15
  4. Step 4: Simplify right side
    5,505,390.15x = 45,377,290,980,117.58
  5. Step 5: Solve for x
    x = 45,377,290,980,117.58/5,505,390.15
  6. Step 6: Final answer
    x = 8,242,338.83

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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.