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Finding the Fourth Proportional to 17,086.20, 25,629.30 and 7,222.20

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Solution

The fourth proportional to 17,086.20, 25,629.30 and 7,222.20 is: 10,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.20 : 25,629.30 = 7,222.20 : x
  2. Step 2: Convert to fraction form
    17,086.20/25,629.30 = 7,222.20/x
  3. Step 3: Cross multiply
    17,086.20x = 25,629.30 × 7,222.20
  4. Step 4: Simplify right side
    17,086.20x = 185,099,930.46
  5. Step 5: Solve for x
    x = 185,099,930.46/17,086.20
  6. Step 6: Final answer
    x = 10,833.30

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1.5x scale

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.