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Finding the Third Proportional to 19,888 and 43,916

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Solution

The third proportional to 19,888 and 43,916 is: 96,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888 : 43,916 = 43,916 : x
  2. Step 2: Convert to fraction form
    19,888/43,916 = 43,916/x
  3. Step 3: Cross multiply
    19,888x = 43,916 × 43,916
  4. Step 4: Simplify right side
    19,888x = 1,928,615,056
  5. Step 5: Solve for x
    x = 1,928,615,056/19,888
  6. Step 6: Final answer
    x = 96,973.81

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.