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Finding the Fourth Proportional to 57,066.01, 78,736.92 and 36,898.62

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Solution

The fourth proportional to 57,066.01, 78,736.92 and 36,898.62 is: 50,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,066.01 : 78,736.92 = 36,898.62 : x
  2. Step 2: Convert to fraction form
    57,066.01/78,736.92 = 36,898.62/x
  3. Step 3: Cross multiply
    57,066.01x = 78,736.92 × 36,898.62
  4. Step 4: Simplify right side
    57,066.01x = 2,905,283,691.05
  5. Step 5: Solve for x
    x = 2,905,283,691.05/57,066.01
  6. Step 6: Final answer
    x = 50,910.93

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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.