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Finding the Fourth Proportional to 9,361,198.24, 12,868,855.88 and 8,049,647.20

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Solution

The fourth proportional to 9,361,198.24, 12,868,855.88 and 8,049,647.20 is: 11,065,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361,198.24 : 12,868,855.88 = 8,049,647.20 : x
  2. Step 2: Convert to fraction form
    9,361,198.24/12,868,855.88 = 8,049,647.20/x
  3. Step 3: Cross multiply
    9,361,198.24x = 12,868,855.88 × 8,049,647.20
  4. Step 4: Simplify right side
    9,361,198.24x = 103,589,749,701,645.55
  5. Step 5: Solve for x
    x = 103,589,749,701,645.55/9,361,198.24
  6. Step 6: Final answer
    x = 11,065,864.33

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.