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Finding the Third Proportional to 19,893 and 27,886

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Solution

The third proportional to 19,893 and 27,886 is: 39,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893 : 27,886 = 27,886 : x
  2. Step 2: Convert to fraction form
    19,893/27,886 = 27,886/x
  3. Step 3: Cross multiply
    19,893x = 27,886 × 27,886
  4. Step 4: Simplify right side
    19,893x = 777,628,996
  5. Step 5: Solve for x
    x = 777,628,996/19,893
  6. Step 6: Final answer
    x = 39,090.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.