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Finding the Fourth Proportional to 32,311.76, 48,481.80 and 15,684.56

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Solution

The fourth proportional to 32,311.76, 48,481.80 and 15,684.56 is: 23,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,311.76 : 48,481.80 = 15,684.56 : x
  2. Step 2: Convert to fraction form
    32,311.76/48,481.80 = 15,684.56/x
  3. Step 3: Cross multiply
    32,311.76x = 48,481.80 × 15,684.56
  4. Step 4: Simplify right side
    32,311.76x = 760,415,701.01
  5. Step 5: Solve for x
    x = 760,415,701.01/32,311.76
  6. Step 6: Final answer
    x = 23,533.71

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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.