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Finding the Fourth Proportional to 17,889.45, 26,843.89 and 7,508.49

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Solution

The fourth proportional to 17,889.45, 26,843.89 and 7,508.49 is: 11,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.45 : 26,843.89 = 7,508.49 : x
  2. Step 2: Convert to fraction form
    17,889.45/26,843.89 = 7,508.49/x
  3. Step 3: Cross multiply
    17,889.45x = 26,843.89 × 7,508.49
  4. Step 4: Simplify right side
    17,889.45x = 201,557,079.63
  5. Step 5: Solve for x
    x = 201,557,079.63/17,889.45
  6. Step 6: Final answer
    x = 11,266.81

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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.