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Finding the Fourth Proportional to 18,622,090.80, 27,933,136.20 and 18,622,090.80

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Solution

The fourth proportional to 18,622,090.80, 27,933,136.20 and 18,622,090.80 is: 27,933,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622,090.80 : 27,933,136.20 = 18,622,090.80 : x
  2. Step 2: Convert to fraction form
    18,622,090.80/27,933,136.20 = 18,622,090.80/x
  3. Step 3: Cross multiply
    18,622,090.80x = 27,933,136.20 × 18,622,090.80
  4. Step 4: Simplify right side
    18,622,090.80x = 520,173,398,645,166.94
  5. Step 5: Solve for x
    x = 520,173,398,645,166.94/18,622,090.80
  6. Step 6: Final answer
    x = 27,933,136.20

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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.