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Finding the Third Proportional to 19,926 and 27,858

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Solution

The third proportional to 19,926 and 27,858 is: 38,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,926 : 27,858 = 27,858 : x
  2. Step 2: Convert to fraction form
    19,926/27,858 = 27,858/x
  3. Step 3: Cross multiply
    19,926x = 27,858 × 27,858
  4. Step 4: Simplify right side
    19,926x = 776,068,164
  5. Step 5: Solve for x
    x = 776,068,164/19,926
  6. Step 6: Final answer
    x = 38,947.51

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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.