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Finding the Fourth Proportional to 17,945.21, 26,917.83 and 8,583.03

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Solution

The fourth proportional to 17,945.21, 26,917.83 and 8,583.03 is: 12,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,945.21 : 26,917.83 = 8,583.03 : x
  2. Step 2: Convert to fraction form
    17,945.21/26,917.83 = 8,583.03/x
  3. Step 3: Cross multiply
    17,945.21x = 26,917.83 × 8,583.03
  4. Step 4: Simplify right side
    17,945.21x = 231,036,542.42
  5. Step 5: Solve for x
    x = 231,036,542.42/17,945.21
  6. Step 6: Final answer
    x = 12,874.55

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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.