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Finding the Fourth Proportional to 7,494.11, 11,239.90 and 2,749.29

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Solution

The fourth proportional to 7,494.11, 11,239.90 and 2,749.29 is: 4,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494.11 : 11,239.90 = 2,749.29 : x
  2. Step 2: Convert to fraction form
    7,494.11/11,239.90 = 2,749.29/x
  3. Step 3: Cross multiply
    7,494.11x = 11,239.90 × 2,749.29
  4. Step 4: Simplify right side
    7,494.11x = 30,901,711.11
  5. Step 5: Solve for x
    x = 30,901,711.11/7,494.11
  6. Step 6: Final answer
    x = 4,123.47

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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.