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Finding the Fourth Proportional to 19,468.63, 29,197.17 and 8,372.68

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Solution

The fourth proportional to 19,468.63, 29,197.17 and 8,372.68 is: 12,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,468.63 : 29,197.17 = 8,372.68 : x
  2. Step 2: Convert to fraction form
    19,468.63/29,197.17 = 8,372.68/x
  3. Step 3: Cross multiply
    19,468.63x = 29,197.17 × 8,372.68
  4. Step 4: Simplify right side
    19,468.63x = 244,458,541.16
  5. Step 5: Solve for x
    x = 244,458,541.16/19,468.63
  6. Step 6: Final answer
    x = 12,556.54

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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.