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Finding the Third Proportional to 12,480 and 17,192

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Solution

The third proportional to 12,480 and 17,192 is: 23,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480 : 17,192 = 17,192 : x
  2. Step 2: Convert to fraction form
    12,480/17,192 = 17,192/x
  3. Step 3: Cross multiply
    12,480x = 17,192 × 17,192
  4. Step 4: Simplify right side
    12,480x = 295,564,864
  5. Step 5: Solve for x
    x = 295,564,864/12,480
  6. Step 6: Final answer
    x = 23,683.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.