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Finding the Third Proportional to 15,324 and 22,116

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Solution

The third proportional to 15,324 and 22,116 is: 31,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324 : 22,116 = 22,116 : x
  2. Step 2: Convert to fraction form
    15,324/22,116 = 22,116/x
  3. Step 3: Cross multiply
    15,324x = 22,116 × 22,116
  4. Step 4: Simplify right side
    15,324x = 489,117,456
  5. Step 5: Solve for x
    x = 489,117,456/15,324
  6. Step 6: Final answer
    x = 31,918.39

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.