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Finding the Fourth Proportional to 55,363.60, 83,021.10 and 22,072.60

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Solution

The fourth proportional to 55,363.60, 83,021.10 and 22,072.60 is: 33,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,363.60 : 83,021.10 = 22,072.60 : x
  2. Step 2: Convert to fraction form
    55,363.60/83,021.10 = 22,072.60/x
  3. Step 3: Cross multiply
    55,363.60x = 83,021.10 × 22,072.60
  4. Step 4: Simplify right side
    55,363.60x = 1,832,491,531.86
  5. Step 5: Solve for x
    x = 1,832,491,531.86/55,363.60
  6. Step 6: Final answer
    x = 33,099.21

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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.