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Finding the Fourth Proportional to 18,065,495.94, 27,093,905.03 and 8,340,765.40

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Solution

The fourth proportional to 18,065,495.94, 27,093,905.03 and 8,340,765.40 is: 12,509,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065,495.94 : 27,093,905.03 = 8,340,765.40 : x
  2. Step 2: Convert to fraction form
    18,065,495.94/27,093,905.03 = 8,340,765.40/x
  3. Step 3: Cross multiply
    18,065,495.94x = 27,093,905.03 × 8,340,765.40
  4. Step 4: Simplify right side
    18,065,495.94x = 225,983,905,713,696.62
  5. Step 5: Solve for x
    x = 225,983,905,713,696.62/18,065,495.94
  6. Step 6: Final answer
    x = 12,509,144.86

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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.