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Finding the Fourth Proportional to 11,394.57, 17,079.10 and 7,453.42

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Solution

The fourth proportional to 11,394.57, 17,079.10 and 7,453.42 is: 11,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.57 : 17,079.10 = 7,453.42 : x
  2. Step 2: Convert to fraction form
    11,394.57/17,079.10 = 7,453.42/x
  3. Step 3: Cross multiply
    11,394.57x = 17,079.10 × 7,453.42
  4. Step 4: Simplify right side
    11,394.57x = 127,297,686.12
  5. Step 5: Solve for x
    x = 127,297,686.12/11,394.57
  6. Step 6: Final answer
    x = 11,171.78

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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.