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Finding the Third Proportional to 19,824 and 43,104

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Solution

The third proportional to 19,824 and 43,104 is: 93,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,824 : 43,104 = 43,104 : x
  2. Step 2: Convert to fraction form
    19,824/43,104 = 43,104/x
  3. Step 3: Cross multiply
    19,824x = 43,104 × 43,104
  4. Step 4: Simplify right side
    19,824x = 1,857,954,816
  5. Step 5: Solve for x
    x = 1,857,954,816/19,824
  6. Step 6: Final answer
    x = 93,722.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.