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Finding the Fourth Proportional to 66,947.25, 100,350.81 and 22,558.68

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Solution

The fourth proportional to 66,947.25, 100,350.81 and 22,558.68 is: 33,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,947.25 : 100,350.81 = 22,558.68 : x
  2. Step 2: Convert to fraction form
    66,947.25/100,350.81 = 22,558.68/x
  3. Step 3: Cross multiply
    66,947.25x = 100,350.81 × 22,558.68
  4. Step 4: Simplify right side
    66,947.25x = 2,263,781,810.53
  5. Step 5: Solve for x
    x = 2,263,781,810.53/66,947.25
  6. Step 6: Final answer
    x = 33,814.41

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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.