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Finding the Fourth Proportional to 17,679.54, 26,504.42 and 7,676.76

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Solution

The fourth proportional to 17,679.54, 26,504.42 and 7,676.76 is: 11,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.54 : 26,504.42 = 7,676.76 : x
  2. Step 2: Convert to fraction form
    17,679.54/26,504.42 = 7,676.76/x
  3. Step 3: Cross multiply
    17,679.54x = 26,504.42 × 7,676.76
  4. Step 4: Simplify right side
    17,679.54x = 203,468,032.90
  5. Step 5: Solve for x
    x = 203,468,032.90/17,679.54
  6. Step 6: Final answer
    x = 11,508.67

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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.