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Finding the Fourth Proportional to 27,313,340.40, 40,964,761.80 and 8,144,722.80

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Solution

The fourth proportional to 27,313,340.40, 40,964,761.80 and 8,144,722.80 is: 12,215,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,313,340.40 : 40,964,761.80 = 8,144,722.80 : x
  2. Step 2: Convert to fraction form
    27,313,340.40/40,964,761.80 = 8,144,722.80/x
  3. Step 3: Cross multiply
    27,313,340.40x = 40,964,761.80 × 8,144,722.80
  4. Step 4: Simplify right side
    27,313,340.40x = 333,646,629,429,029
  5. Step 5: Solve for x
    x = 333,646,629,429,029/27,313,340.40
  6. Step 6: Final answer
    x = 12,215,519.03

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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.