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Finding the Fourth Proportional to 64,568.46, 96,644.36 and 33,360.78

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Solution

The fourth proportional to 64,568.46, 96,644.36 and 33,360.78 is: 49,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,568.46 : 96,644.36 = 33,360.78 : x
  2. Step 2: Convert to fraction form
    64,568.46/96,644.36 = 33,360.78/x
  3. Step 3: Cross multiply
    64,568.46x = 96,644.36 × 33,360.78
  4. Step 4: Simplify right side
    64,568.46x = 3,224,131,232.20
  5. Step 5: Solve for x
    x = 3,224,131,232.20/64,568.46
  6. Step 6: Final answer
    x = 49,933.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.