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Finding the Fourth Proportional to 18,524.48, 27,754.28 and 15,424.40

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Solution

The fourth proportional to 18,524.48, 27,754.28 and 15,424.40 is: 23,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.48 : 27,754.28 = 15,424.40 : x
  2. Step 2: Convert to fraction form
    18,524.48/27,754.28 = 15,424.40/x
  3. Step 3: Cross multiply
    18,524.48x = 27,754.28 × 15,424.40
  4. Step 4: Simplify right side
    18,524.48x = 428,093,116.43
  5. Step 5: Solve for x
    x = 428,093,116.43/18,524.48
  6. Step 6: Final answer
    x = 23,109.59

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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.