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Finding the Third Proportional to 9,087 and 13,631

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Solution

The third proportional to 9,087 and 13,631 is: 20,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087 : 13,631 = 13,631 : x
  2. Step 2: Convert to fraction form
    9,087/13,631 = 13,631/x
  3. Step 3: Cross multiply
    9,087x = 13,631 × 13,631
  4. Step 4: Simplify right side
    9,087x = 185,804,161
  5. Step 5: Solve for x
    x = 185,804,161/9,087
  6. Step 6: Final answer
    x = 20,447.25

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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.