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Finding the Fourth Proportional to 21,571.74, 32,359.41 and 5,989.41

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Solution

The fourth proportional to 21,571.74, 32,359.41 and 5,989.41 is: 8,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.74 : 32,359.41 = 5,989.41 : x
  2. Step 2: Convert to fraction form
    21,571.74/32,359.41 = 5,989.41/x
  3. Step 3: Cross multiply
    21,571.74x = 32,359.41 × 5,989.41
  4. Step 4: Simplify right side
    21,571.74x = 193,813,773.85
  5. Step 5: Solve for x
    x = 193,813,773.85/21,571.74
  6. Step 6: Final answer
    x = 8,984.61

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1.5x scale

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.