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Finding the Fourth Proportional to 18,704.10, 28,057.11 and 17,758.22

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Solution

The fourth proportional to 18,704.10, 28,057.11 and 17,758.22 is: 26,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.10 : 28,057.11 = 17,758.22 : x
  2. Step 2: Convert to fraction form
    18,704.10/28,057.11 = 17,758.22/x
  3. Step 3: Cross multiply
    18,704.10x = 28,057.11 × 17,758.22
  4. Step 4: Simplify right side
    18,704.10x = 498,244,230.28
  5. Step 5: Solve for x
    x = 498,244,230.28/18,704.10
  6. Step 6: Final answer
    x = 26,638.24

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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.