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Finding the Fourth Proportional to 11,679.60, 17,519.39 and 10,514.48

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Solution

The fourth proportional to 11,679.60, 17,519.39 and 10,514.48 is: 15,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.60 : 17,519.39 = 10,514.48 : x
  2. Step 2: Convert to fraction form
    11,679.60/17,519.39 = 10,514.48/x
  3. Step 3: Cross multiply
    11,679.60x = 17,519.39 × 10,514.48
  4. Step 4: Simplify right side
    11,679.60x = 184,207,223.19
  5. Step 5: Solve for x
    x = 184,207,223.19/11,679.60
  6. Step 6: Final answer
    x = 15,771.71

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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.