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Finding the Fourth Proportional to 6,267,838.92, 8,627,584.55 and 5,491,639.81

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Solution

The fourth proportional to 6,267,838.92, 8,627,584.55 and 5,491,639.81 is: 7,559,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,267,838.92 : 8,627,584.55 = 5,491,639.81 : x
  2. Step 2: Convert to fraction form
    6,267,838.92/8,627,584.55 = 5,491,639.81/x
  3. Step 3: Cross multiply
    6,267,838.92x = 8,627,584.55 × 5,491,639.81
  4. Step 4: Simplify right side
    6,267,838.92x = 47,379,586,778,920.94
  5. Step 5: Solve for x
    x = 47,379,586,778,920.94/6,267,838.92
  6. Step 6: Final answer
    x = 7,559,158.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.