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Finding the Fourth Proportional to 17,740, 24,481.20 and 10,288

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Solution

The fourth proportional to 17,740, 24,481.20 and 10,288 is: 14,197.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,740 : 24,481.20 = 10,288 : x
  2. Step 2: Convert to fraction form
    17,740/24,481.20 = 10,288/x
  3. Step 3: Cross multiply
    17,740x = 24,481.20 × 10,288
  4. Step 4: Simplify right side
    17,740x = 251,862,585.60
  5. Step 5: Solve for x
    x = 251,862,585.60/17,740
  6. Step 6: Final answer
    x = 14,197.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.