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Finding the Fourth Proportional to 17,165.88, 25,724.34 and 10,147.32

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Solution

The fourth proportional to 17,165.88, 25,724.34 and 10,147.32 is: 15,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,165.88 : 25,724.34 = 10,147.32 : x
  2. Step 2: Convert to fraction form
    17,165.88/25,724.34 = 10,147.32/x
  3. Step 3: Cross multiply
    17,165.88x = 25,724.34 × 10,147.32
  4. Step 4: Simplify right side
    17,165.88x = 261,033,109.77
  5. Step 5: Solve for x
    x = 261,033,109.77/17,165.88
  6. Step 6: Final answer
    x = 15,206.51

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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.