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Finding the Fourth Proportional to 64,571.68, 89,108.84 and 35,890.44

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Solution

The fourth proportional to 64,571.68, 89,108.84 and 35,890.44 is: 49,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,571.68 : 89,108.84 = 35,890.44 : x
  2. Step 2: Convert to fraction form
    64,571.68/89,108.84 = 35,890.44/x
  3. Step 3: Cross multiply
    64,571.68x = 89,108.84 × 35,890.44
  4. Step 4: Simplify right side
    64,571.68x = 3,198,155,231.06
  5. Step 5: Solve for x
    x = 3,198,155,231.06/64,571.68
  6. Step 6: Final answer
    x = 49,528.76

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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.