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Finding the Fourth Proportional to 17,918.73, 26,874.09 and 11,722.23

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Solution

The fourth proportional to 17,918.73, 26,874.09 and 11,722.23 is: 17,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.73 : 26,874.09 = 11,722.23 : x
  2. Step 2: Convert to fraction form
    17,918.73/26,874.09 = 11,722.23/x
  3. Step 3: Cross multiply
    17,918.73x = 26,874.09 × 11,722.23
  4. Step 4: Simplify right side
    17,918.73x = 315,024,264.02
  5. Step 5: Solve for x
    x = 315,024,264.02/17,918.73
  6. Step 6: Final answer
    x = 17,580.72

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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.