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Finding the Fourth Proportional to 18,449.88, 27,538.56 and 17,149.56

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Solution

The fourth proportional to 18,449.88, 27,538.56 and 17,149.56 is: 25,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.88 : 27,538.56 = 17,149.56 : x
  2. Step 2: Convert to fraction form
    18,449.88/27,538.56 = 17,149.56/x
  3. Step 3: Cross multiply
    18,449.88x = 27,538.56 × 17,149.56
  4. Step 4: Simplify right side
    18,449.88x = 472,274,187.03
  5. Step 5: Solve for x
    x = 472,274,187.03/18,449.88
  6. Step 6: Final answer
    x = 25,597.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.