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Finding the Fourth Proportional to 9,361,993.80, 14,042,990.70 and 7,944,817.80

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Solution

The fourth proportional to 9,361,993.80, 14,042,990.70 and 7,944,817.80 is: 11,917,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361,993.80 : 14,042,990.70 = 7,944,817.80 : x
  2. Step 2: Convert to fraction form
    9,361,993.80/14,042,990.70 = 7,944,817.80/x
  3. Step 3: Cross multiply
    9,361,993.80x = 14,042,990.70 × 7,944,817.80
  4. Step 4: Simplify right side
    9,361,993.80x = 111,569,002,478,594.45
  5. Step 5: Solve for x
    x = 111,569,002,478,594.45/9,361,993.80
  6. Step 6: Final answer
    x = 11,917,226.70

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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.