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Finding the Fourth Proportional to 57,709.62, 79,640.62 and 36,200.27

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Solution

The fourth proportional to 57,709.62, 79,640.62 and 36,200.27 is: 49,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.62 : 79,640.62 = 36,200.27 : x
  2. Step 2: Convert to fraction form
    57,709.62/79,640.62 = 36,200.27/x
  3. Step 3: Cross multiply
    57,709.62x = 79,640.62 × 36,200.27
  4. Step 4: Simplify right side
    57,709.62x = 2,883,012,055.57
  5. Step 5: Solve for x
    x = 2,883,012,055.57/57,709.62
  6. Step 6: Final answer
    x = 49,957.22

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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.