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Finding the Third Proportional to 8,964 and 13,908

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Solution

The third proportional to 8,964 and 13,908 is: 21,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964 : 13,908 = 13,908 : x
  2. Step 2: Convert to fraction form
    8,964/13,908 = 13,908/x
  3. Step 3: Cross multiply
    8,964x = 13,908 × 13,908
  4. Step 4: Simplify right side
    8,964x = 193,432,464
  5. Step 5: Solve for x
    x = 193,432,464/8,964
  6. Step 6: Final answer
    x = 21,578.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.