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Finding the Fourth Proportional to 28,494.67, 42,754.31 and 15,344.42

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Solution

The fourth proportional to 28,494.67, 42,754.31 and 15,344.42 is: 23,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,494.67 : 42,754.31 = 15,344.42 : x
  2. Step 2: Convert to fraction form
    28,494.67/42,754.31 = 15,344.42/x
  3. Step 3: Cross multiply
    28,494.67x = 42,754.31 × 15,344.42
  4. Step 4: Simplify right side
    28,494.67x = 656,040,314.86
  5. Step 5: Solve for x
    x = 656,040,314.86/28,494.67
  6. Step 6: Final answer
    x = 23,023.26

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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.