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Finding the Fourth Proportional to 57,517.73, 79,368.80 and 33,639.74

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Solution

The fourth proportional to 57,517.73, 79,368.80 and 33,639.74 is: 46,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,517.73 : 79,368.80 = 33,639.74 : x
  2. Step 2: Convert to fraction form
    57,517.73/79,368.80 = 33,639.74/x
  3. Step 3: Cross multiply
    57,517.73x = 79,368.80 × 33,639.74
  4. Step 4: Simplify right side
    57,517.73x = 2,669,945,528.70
  5. Step 5: Solve for x
    x = 2,669,945,528.70/57,517.73
  6. Step 6: Final answer
    x = 46,419.52

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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.