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Finding the Fourth Proportional to 57,640.32, 79,539.84 and 32,489.28

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Solution

The fourth proportional to 57,640.32, 79,539.84 and 32,489.28 is: 44,833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.32 : 79,539.84 = 32,489.28 : x
  2. Step 2: Convert to fraction form
    57,640.32/79,539.84 = 32,489.28/x
  3. Step 3: Cross multiply
    57,640.32x = 79,539.84 × 32,489.28
  4. Step 4: Simplify right side
    57,640.32x = 2,584,192,132.92
  5. Step 5: Solve for x
    x = 2,584,192,132.92/57,640.32
  6. Step 6: Final answer
    x = 44,833.06

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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.