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Finding the Third Proportional to 12,328 and 19,644

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Solution

The third proportional to 12,328 and 19,644 is: 31,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328 : 19,644 = 19,644 : x
  2. Step 2: Convert to fraction form
    12,328/19,644 = 19,644/x
  3. Step 3: Cross multiply
    12,328x = 19,644 × 19,644
  4. Step 4: Simplify right side
    12,328x = 385,886,736
  5. Step 5: Solve for x
    x = 385,886,736/12,328
  6. Step 6: Final answer
    x = 31,301.65

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.