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Finding the Fourth Proportional to 17,168.70, 25,704.45 and 15,419.10

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Solution

The fourth proportional to 17,168.70, 25,704.45 and 15,419.10 is: 23,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.70 : 25,704.45 = 15,419.10 : x
  2. Step 2: Convert to fraction form
    17,168.70/25,704.45 = 15,419.10/x
  3. Step 3: Cross multiply
    17,168.70x = 25,704.45 × 15,419.10
  4. Step 4: Simplify right side
    17,168.70x = 396,339,485.00
  5. Step 5: Solve for x
    x = 396,339,485.00/17,168.70
  6. Step 6: Final answer
    x = 23,085.00

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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.