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Finding the Third Proportional to 4,855.50 and 10,689.75

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Solution

The third proportional to 4,855.50 and 10,689.75 is: 23,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.50 : 10,689.75 = 10,689.75 : x
  2. Step 2: Convert to fraction form
    4,855.50/10,689.75 = 10,689.75/x
  3. Step 3: Cross multiply
    4,855.50x = 10,689.75 × 10,689.75
  4. Step 4: Simplify right side
    4,855.50x = 114,270,755.06
  5. Step 5: Solve for x
    x = 114,270,755.06/4,855.50
  6. Step 6: Final answer
    x = 23,534.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.