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Finding the Third Proportional to 13,321 and 27,015.50

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Solution

The third proportional to 13,321 and 27,015.50 is: 54,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321 : 27,015.50 = 27,015.50 : x
  2. Step 2: Convert to fraction form
    13,321/27,015.50 = 27,015.50/x
  3. Step 3: Cross multiply
    13,321x = 27,015.50 × 27,015.50
  4. Step 4: Simplify right side
    13,321x = 729,837,240.25
  5. Step 5: Solve for x
    x = 729,837,240.25/13,321
  6. Step 6: Final answer
    x = 54,788.47

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.