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Finding the Fourth Proportional to 32,112.99, 48,150.99 and 12,388.95

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Solution

The fourth proportional to 32,112.99, 48,150.99 and 12,388.95 is: 18,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,112.99 : 48,150.99 = 12,388.95 : x
  2. Step 2: Convert to fraction form
    32,112.99/48,150.99 = 12,388.95/x
  3. Step 3: Cross multiply
    32,112.99x = 48,150.99 × 12,388.95
  4. Step 4: Simplify right side
    32,112.99x = 596,540,207.56
  5. Step 5: Solve for x
    x = 596,540,207.56/32,112.99
  6. Step 6: Final answer
    x = 18,576.29

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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.