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Finding the Third Proportional to 12,240 and 20,232

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Solution

The third proportional to 12,240 and 20,232 is: 33,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240 : 20,232 = 20,232 : x
  2. Step 2: Convert to fraction form
    12,240/20,232 = 20,232/x
  3. Step 3: Cross multiply
    12,240x = 20,232 × 20,232
  4. Step 4: Simplify right side
    12,240x = 409,333,824
  5. Step 5: Solve for x
    x = 409,333,824/12,240
  6. Step 6: Final answer
    x = 33,442.31

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.