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Finding the Fourth Proportional to 17,168.40, 25,754.40 and 7,308.72

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Solution

The fourth proportional to 17,168.40, 25,754.40 and 7,308.72 is: 10,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.40 : 25,754.40 = 7,308.72 : x
  2. Step 2: Convert to fraction form
    17,168.40/25,754.40 = 7,308.72/x
  3. Step 3: Cross multiply
    17,168.40x = 25,754.40 × 7,308.72
  4. Step 4: Simplify right side
    17,168.40x = 188,231,698.37
  5. Step 5: Solve for x
    x = 188,231,698.37/17,168.40
  6. Step 6: Final answer
    x = 10,963.85

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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.