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Finding the Fourth Proportional to 9,993,974.52, 13,791,689.45 and 5,410,295.89

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Solution

The fourth proportional to 9,993,974.52, 13,791,689.45 and 5,410,295.89 is: 7,466,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993,974.52 : 13,791,689.45 = 5,410,295.89 : x
  2. Step 2: Convert to fraction form
    9,993,974.52/13,791,689.45 = 5,410,295.89/x
  3. Step 3: Cross multiply
    9,993,974.52x = 13,791,689.45 × 5,410,295.89
  4. Step 4: Simplify right side
    9,993,974.52x = 74,617,120,720,439.88
  5. Step 5: Solve for x
    x = 74,617,120,720,439.88/9,993,974.52
  6. Step 6: Final answer
    x = 7,466,210.83

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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.