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Finding the Fourth Proportional to 64,945.80, 89,614.08 and 36,650.88

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Solution

The fourth proportional to 64,945.80, 89,614.08 and 36,650.88 is: 50,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,945.80 : 89,614.08 = 36,650.88 : x
  2. Step 2: Convert to fraction form
    64,945.80/89,614.08 = 36,650.88/x
  3. Step 3: Cross multiply
    64,945.80x = 89,614.08 × 36,650.88
  4. Step 4: Simplify right side
    64,945.80x = 3,284,434,892.39
  5. Step 5: Solve for x
    x = 3,284,434,892.39/64,945.80
  6. Step 6: Final answer
    x = 50,571.94

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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.