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Finding the Fourth Proportional to 18,627.75, 27,941.69 and 17,693.42

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Solution

The fourth proportional to 18,627.75, 27,941.69 and 17,693.42 is: 26,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.75 : 27,941.69 = 17,693.42 : x
  2. Step 2: Convert to fraction form
    18,627.75/27,941.69 = 17,693.42/x
  3. Step 3: Cross multiply
    18,627.75x = 27,941.69 × 17,693.42
  4. Step 4: Simplify right side
    18,627.75x = 494,383,961.20
  5. Step 5: Solve for x
    x = 494,383,961.20/18,627.75
  6. Step 6: Final answer
    x = 26,540.19

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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.