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Finding the Third Proportional to 18,729 and 27,994.50

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Solution

The third proportional to 18,729 and 27,994.50 is: 41,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729 : 27,994.50 = 27,994.50 : x
  2. Step 2: Convert to fraction form
    18,729/27,994.50 = 27,994.50/x
  3. Step 3: Cross multiply
    18,729x = 27,994.50 × 27,994.50
  4. Step 4: Simplify right side
    18,729x = 783,692,030.25
  5. Step 5: Solve for x
    x = 783,692,030.25/18,729
  6. Step 6: Final answer
    x = 41,843.77

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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.