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Finding the Fourth Proportional to 8,482,661.69, 12,724,412.85 and 2,418,286.86

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Solution

The fourth proportional to 8,482,661.69, 12,724,412.85 and 2,418,286.86 is: 3,627,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482,661.69 : 12,724,412.85 = 2,418,286.86 : x
  2. Step 2: Convert to fraction form
    8,482,661.69/12,724,412.85 = 2,418,286.86/x
  3. Step 3: Cross multiply
    8,482,661.69x = 12,724,412.85 × 2,418,286.86
  4. Step 4: Simplify right side
    8,482,661.69x = 30,771,280,396,370.15
  5. Step 5: Solve for x
    x = 30,771,280,396,370.15/8,482,661.69
  6. Step 6: Final answer
    x = 3,627,550.12

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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.