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Finding the Fourth Proportional to 64,628.75, 89,200.46 and 41,935.88

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Solution

The fourth proportional to 64,628.75, 89,200.46 and 41,935.88 is: 57,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,628.75 : 89,200.46 = 41,935.88 : x
  2. Step 2: Convert to fraction form
    64,628.75/89,200.46 = 41,935.88/x
  3. Step 3: Cross multiply
    64,628.75x = 89,200.46 × 41,935.88
  4. Step 4: Simplify right side
    64,628.75x = 3,740,700,114.35
  5. Step 5: Solve for x
    x = 3,740,700,114.35/64,628.75
  6. Step 6: Final answer
    x = 57,879.81

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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.