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Finding the Fourth Proportional to 17,671.58, 26,511.72 and 8,791.12

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Solution

The fourth proportional to 17,671.58, 26,511.72 and 8,791.12 is: 13,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671.58 : 26,511.72 = 8,791.12 : x
  2. Step 2: Convert to fraction form
    17,671.58/26,511.72 = 8,791.12/x
  3. Step 3: Cross multiply
    17,671.58x = 26,511.72 × 8,791.12
  4. Step 4: Simplify right side
    17,671.58x = 233,067,645.65
  5. Step 5: Solve for x
    x = 233,067,645.65/17,671.58
  6. Step 6: Final answer
    x = 13,188.84

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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.