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Finding the Fourth Proportional to 8,964.43, 13,447.10 and 2,390.67

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Solution

The fourth proportional to 8,964.43, 13,447.10 and 2,390.67 is: 3,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.43 : 13,447.10 = 2,390.67 : x
  2. Step 2: Convert to fraction form
    8,964.43/13,447.10 = 2,390.67/x
  3. Step 3: Cross multiply
    8,964.43x = 13,447.10 × 2,390.67
  4. Step 4: Simplify right side
    8,964.43x = 32,147,578.56
  5. Step 5: Solve for x
    x = 32,147,578.56/8,964.43
  6. Step 6: Final answer
    x = 3,586.13

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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.