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Finding the Third Proportional to 18,360 and 27,411

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Solution

The third proportional to 18,360 and 27,411 is: 40,923.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360 : 27,411 = 27,411 : x
  2. Step 2: Convert to fraction form
    18,360/27,411 = 27,411/x
  3. Step 3: Cross multiply
    18,360x = 27,411 × 27,411
  4. Step 4: Simplify right side
    18,360x = 751,362,921
  5. Step 5: Solve for x
    x = 751,362,921/18,360
  6. Step 6: Final answer
    x = 40,923.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.