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Finding the Fourth Proportional to 18,348.48, 27,537.84 and 7,958.88

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Solution

The fourth proportional to 18,348.48, 27,537.84 and 7,958.88 is: 11,944.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.48 : 27,537.84 = 7,958.88 : x
  2. Step 2: Convert to fraction form
    18,348.48/27,537.84 = 7,958.88/x
  3. Step 3: Cross multiply
    18,348.48x = 27,537.84 × 7,958.88
  4. Step 4: Simplify right side
    18,348.48x = 219,170,364.02
  5. Step 5: Solve for x
    x = 219,170,364.02/18,348.48
  6. Step 6: Final answer
    x = 11,944.88

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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.