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Finding the Fourth Proportional to 27,216,943.20, 40,825,414.80 and 12,100,399.20

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Solution

The fourth proportional to 27,216,943.20, 40,825,414.80 and 12,100,399.20 is: 18,150,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,216,943.20 : 40,825,414.80 = 12,100,399.20 : x
  2. Step 2: Convert to fraction form
    27,216,943.20/40,825,414.80 = 12,100,399.20/x
  3. Step 3: Cross multiply
    27,216,943.20x = 40,825,414.80 × 12,100,399.20
  4. Step 4: Simplify right side
    27,216,943.20x = 494,003,816,585,588.06
  5. Step 5: Solve for x
    x = 494,003,816,585,588.06/27,216,943.20
  6. Step 6: Final answer
    x = 18,150,598.80

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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.