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Finding the Fourth Proportional to 18,443,224.80, 27,682,551.90 and 9,355,583.70

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Solution

The fourth proportional to 18,443,224.80, 27,682,551.90 and 9,355,583.70 is: 14,042,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,224.80 : 27,682,551.90 = 9,355,583.70 : x
  2. Step 2: Convert to fraction form
    18,443,224.80/27,682,551.90 = 9,355,583.70/x
  3. Step 3: Cross multiply
    18,443,224.80x = 27,682,551.90 × 9,355,583.70
  4. Step 4: Simplify right side
    18,443,224.80x = 258,986,431,330,044
  5. Step 5: Solve for x
    x = 258,986,431,330,044/18,443,224.80
  6. Step 6: Final answer
    x = 14,042,361.58

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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.