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Finding the Third Proportional to 12,240 and 17,512

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Solution

The third proportional to 12,240 and 17,512 is: 25,054.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240 : 17,512 = 17,512 : x
  2. Step 2: Convert to fraction form
    12,240/17,512 = 17,512/x
  3. Step 3: Cross multiply
    12,240x = 17,512 × 17,512
  4. Step 4: Simplify right side
    12,240x = 306,670,144
  5. Step 5: Solve for x
    x = 306,670,144/12,240
  6. Step 6: Final answer
    x = 25,054.75

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.