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Finding the Fourth Proportional to 32,103, 48,147.66 and 12,375

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Solution

The fourth proportional to 32,103, 48,147.66 and 12,375 is: 18,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,103 : 48,147.66 = 12,375 : x
  2. Step 2: Convert to fraction form
    32,103/48,147.66 = 12,375/x
  3. Step 3: Cross multiply
    32,103x = 48,147.66 × 12,375
  4. Step 4: Simplify right side
    32,103x = 595,827,292.50
  5. Step 5: Solve for x
    x = 595,827,292.50/32,103
  6. Step 6: Final answer
    x = 18,559.86

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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.