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Finding the Third Proportional to 8,491.88 and 18,526.50

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Solution

The third proportional to 8,491.88 and 18,526.50 is: 40,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.88 : 18,526.50 = 18,526.50 : x
  2. Step 2: Convert to fraction form
    8,491.88/18,526.50 = 18,526.50/x
  3. Step 3: Cross multiply
    8,491.88x = 18,526.50 × 18,526.50
  4. Step 4: Simplify right side
    8,491.88x = 343,231,202.25
  5. Step 5: Solve for x
    x = 343,231,202.25/8,491.88
  6. Step 6: Final answer
    x = 40,418.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.