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Finding the Fourth Proportional to 11,765.44, 17,624.87 and 7,086.68

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Solution

The fourth proportional to 11,765.44, 17,624.87 and 7,086.68 is: 10,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.44 : 17,624.87 = 7,086.68 : x
  2. Step 2: Convert to fraction form
    11,765.44/17,624.87 = 7,086.68/x
  3. Step 3: Cross multiply
    11,765.44x = 17,624.87 × 7,086.68
  4. Step 4: Simplify right side
    11,765.44x = 124,901,813.73
  5. Step 5: Solve for x
    x = 124,901,813.73/11,765.44
  6. Step 6: Final answer
    x = 10,615.99

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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.