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Finding the Fourth Proportional to 17,274.70, 23,839.62 and 9,720.86

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Solution

The fourth proportional to 17,274.70, 23,839.62 and 9,720.86 is: 13,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,274.70 : 23,839.62 = 9,720.86 : x
  2. Step 2: Convert to fraction form
    17,274.70/23,839.62 = 9,720.86/x
  3. Step 3: Cross multiply
    17,274.70x = 23,839.62 × 9,720.86
  4. Step 4: Simplify right side
    17,274.70x = 231,741,608.47
  5. Step 5: Solve for x
    x = 231,741,608.47/17,274.70
  6. Step 6: Final answer
    x = 13,415.09

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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.