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Finding the Fourth Proportional to 57,387.60, 79,194.81 and 31,893.16

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Solution

The fourth proportional to 57,387.60, 79,194.81 and 31,893.16 is: 44,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,387.60 : 79,194.81 = 31,893.16 : x
  2. Step 2: Convert to fraction form
    57,387.60/79,194.81 = 31,893.16/x
  3. Step 3: Cross multiply
    57,387.60x = 79,194.81 × 31,893.16
  4. Step 4: Simplify right side
    57,387.60x = 2,525,772,350.53
  5. Step 5: Solve for x
    x = 2,525,772,350.53/57,387.60
  6. Step 6: Final answer
    x = 44,012.51

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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.