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Finding the Third Proportional to 8,805 and 13,161.50

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Solution

The third proportional to 8,805 and 13,161.50 is: 19,673.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805 : 13,161.50 = 13,161.50 : x
  2. Step 2: Convert to fraction form
    8,805/13,161.50 = 13,161.50/x
  3. Step 3: Cross multiply
    8,805x = 13,161.50 × 13,161.50
  4. Step 4: Simplify right side
    8,805x = 173,225,082.25
  5. Step 5: Solve for x
    x = 173,225,082.25/8,805
  6. Step 6: Final answer
    x = 19,673.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.