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Finding the Fourth Proportional to 17,150.20, 25,676.70 and 15,400.60

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Solution

The fourth proportional to 17,150.20, 25,676.70 and 15,400.60 is: 23,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,150.20 : 25,676.70 = 15,400.60 : x
  2. Step 2: Convert to fraction form
    17,150.20/25,676.70 = 15,400.60/x
  3. Step 3: Cross multiply
    17,150.20x = 25,676.70 × 15,400.60
  4. Step 4: Simplify right side
    17,150.20x = 395,436,586.02
  5. Step 5: Solve for x
    x = 395,436,586.02/17,150.20
  6. Step 6: Final answer
    x = 23,057.26

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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.