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Finding the Third Proportional to 8,674.88 and 18,806.63

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Solution

The third proportional to 8,674.88 and 18,806.63 is: 40,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.88 : 18,806.63 = 18,806.63 : x
  2. Step 2: Convert to fraction form
    8,674.88/18,806.63 = 18,806.63/x
  3. Step 3: Cross multiply
    8,674.88x = 18,806.63 × 18,806.63
  4. Step 4: Simplify right side
    8,674.88x = 353,689,143.89
  5. Step 5: Solve for x
    x = 353,689,143.89/8,674.88
  6. Step 6: Final answer
    x = 40,771.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.