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Finding the Fourth Proportional to 17,205.71, 25,791.13 and 11,659.61

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Solution

The fourth proportional to 17,205.71, 25,791.13 and 11,659.61 is: 17,477.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.71 : 25,791.13 = 11,659.61 : x
  2. Step 2: Convert to fraction form
    17,205.71/25,791.13 = 11,659.61/x
  3. Step 3: Cross multiply
    17,205.71x = 25,791.13 × 11,659.61
  4. Step 4: Simplify right side
    17,205.71x = 300,714,629.10
  5. Step 5: Solve for x
    x = 300,714,629.10/17,205.71
  6. Step 6: Final answer
    x = 17,477.61

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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.