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Finding the Fourth Proportional to 17,745.38, 26,624.22 and 7,891.58

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Solution

The fourth proportional to 17,745.38, 26,624.22 and 7,891.58 is: 11,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.38 : 26,624.22 = 7,891.58 : x
  2. Step 2: Convert to fraction form
    17,745.38/26,624.22 = 7,891.58/x
  3. Step 3: Cross multiply
    17,745.38x = 26,624.22 × 7,891.58
  4. Step 4: Simplify right side
    17,745.38x = 210,107,162.07
  5. Step 5: Solve for x
    x = 210,107,162.07/17,745.38
  6. Step 6: Final answer
    x = 11,840.10

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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.