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Finding the Third Proportional to 11,485 and 13,564

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Solution

The third proportional to 11,485 and 13,564 is: 16,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485 : 13,564 = 13,564 : x
  2. Step 2: Convert to fraction form
    11,485/13,564 = 13,564/x
  3. Step 3: Cross multiply
    11,485x = 13,564 × 13,564
  4. Step 4: Simplify right side
    11,485x = 183,982,096
  5. Step 5: Solve for x
    x = 183,982,096/11,485
  6. Step 6: Final answer
    x = 16,019.34

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.