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Finding the Fourth Proportional to 57,065.76, 78,736.58 and 36,898.37

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Solution

The fourth proportional to 57,065.76, 78,736.58 and 36,898.37 is: 50,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.76 : 78,736.58 = 36,898.37 : x
  2. Step 2: Convert to fraction form
    57,065.76/78,736.58 = 36,898.37/x
  3. Step 3: Cross multiply
    57,065.76x = 78,736.58 × 36,898.37
  4. Step 4: Simplify right side
    57,065.76x = 2,905,250,883.20
  5. Step 5: Solve for x
    x = 2,905,250,883.20/57,065.76
  6. Step 6: Final answer
    x = 50,910.58

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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.