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Finding the Fourth Proportional to 11,858.14, 17,789.78 and 6,310.67

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Solution

The fourth proportional to 11,858.14, 17,789.78 and 6,310.67 is: 9,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.14 : 17,789.78 = 6,310.67 : x
  2. Step 2: Convert to fraction form
    11,858.14/17,789.78 = 6,310.67/x
  3. Step 3: Cross multiply
    11,858.14x = 17,789.78 × 6,310.67
  4. Step 4: Simplify right side
    11,858.14x = 112,265,430.95
  5. Step 5: Solve for x
    x = 112,265,430.95/11,858.14
  6. Step 6: Final answer
    x = 9,467.37

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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.