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Finding the Third Proportional to 12,928.50 and 27,927

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Solution

The third proportional to 12,928.50 and 27,927 is: 60,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.50 : 27,927 = 27,927 : x
  2. Step 2: Convert to fraction form
    12,928.50/27,927 = 27,927/x
  3. Step 3: Cross multiply
    12,928.50x = 27,927 × 27,927
  4. Step 4: Simplify right side
    12,928.50x = 779,917,329
  5. Step 5: Solve for x
    x = 779,917,329/12,928.50
  6. Step 6: Final answer
    x = 60,325.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.