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Finding the Fourth Proportional to 18,072,858.81, 24,940,978.46 and 9,813,269.22

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Solution

The fourth proportional to 18,072,858.81, 24,940,978.46 and 9,813,269.22 is: 13,542,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072,858.81 : 24,940,978.46 = 9,813,269.22 : x
  2. Step 2: Convert to fraction form
    18,072,858.81/24,940,978.46 = 9,813,269.22/x
  3. Step 3: Cross multiply
    18,072,858.81x = 24,940,978.46 × 9,813,269.22
  4. Step 4: Simplify right side
    18,072,858.81x = 244,752,536,238,201.03
  5. Step 5: Solve for x
    x = 244,752,536,238,201.03/18,072,858.81
  6. Step 6: Final answer
    x = 13,542,546.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.