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Finding the Fourth Proportional to 11,393.99, 17,066.37 and 11,115.14

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Solution

The fourth proportional to 11,393.99, 17,066.37 and 11,115.14 is: 16,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.99 : 17,066.37 = 11,115.14 : x
  2. Step 2: Convert to fraction form
    11,393.99/17,066.37 = 11,115.14/x
  3. Step 3: Cross multiply
    11,393.99x = 17,066.37 × 11,115.14
  4. Step 4: Simplify right side
    11,393.99x = 189,695,148.40
  5. Step 5: Solve for x
    x = 189,695,148.40/11,393.99
  6. Step 6: Final answer
    x = 16,648.71

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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.