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Finding the Fourth Proportional to 11,668.70, 17,499.90 and 4,273.19

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Solution

The fourth proportional to 11,668.70, 17,499.90 and 4,273.19 is: 6,408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.70 : 17,499.90 = 4,273.19 : x
  2. Step 2: Convert to fraction form
    11,668.70/17,499.90 = 4,273.19/x
  3. Step 3: Cross multiply
    11,668.70x = 17,499.90 × 4,273.19
  4. Step 4: Simplify right side
    11,668.70x = 74,780,397.68
  5. Step 5: Solve for x
    x = 74,780,397.68/11,668.70
  6. Step 6: Final answer
    x = 6,408.63

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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.