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Finding the Fourth Proportional to 18,674.97, 28,023.39 and 10,361.94

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Solution

The fourth proportional to 18,674.97, 28,023.39 and 10,361.94 is: 15,548.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.97 : 28,023.39 = 10,361.94 : x
  2. Step 2: Convert to fraction form
    18,674.97/28,023.39 = 10,361.94/x
  3. Step 3: Cross multiply
    18,674.97x = 28,023.39 × 10,361.94
  4. Step 4: Simplify right side
    18,674.97x = 290,376,685.78
  5. Step 5: Solve for x
    x = 290,376,685.78/18,674.97
  6. Step 6: Final answer
    x = 15,548.98

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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.