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Finding the Fourth Proportional to 32,388.58, 48,573.48 and 13,672.78

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Solution

The fourth proportional to 32,388.58, 48,573.48 and 13,672.78 is: 20,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,388.58 : 48,573.48 = 13,672.78 : x
  2. Step 2: Convert to fraction form
    32,388.58/48,573.48 = 13,672.78/x
  3. Step 3: Cross multiply
    32,388.58x = 48,573.48 × 13,672.78
  4. Step 4: Simplify right side
    32,388.58x = 664,134,505.87
  5. Step 5: Solve for x
    x = 664,134,505.87/32,388.58
  6. Step 6: Final answer
    x = 20,505.21

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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.