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Finding the Fourth Proportional to 17,396.80, 23,989.42 and 10,321.86

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Solution

The fourth proportional to 17,396.80, 23,989.42 and 10,321.86 is: 14,233.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,396.80 : 23,989.42 = 10,321.86 : x
  2. Step 2: Convert to fraction form
    17,396.80/23,989.42 = 10,321.86/x
  3. Step 3: Cross multiply
    17,396.80x = 23,989.42 × 10,321.86
  4. Step 4: Simplify right side
    17,396.80x = 247,615,434.72
  5. Step 5: Solve for x
    x = 247,615,434.72/17,396.80
  6. Step 6: Final answer
    x = 14,233.39

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1.5x scale

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.