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Finding the Third Proportional to 12,415.50 and 27,015

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Solution

The third proportional to 12,415.50 and 27,015 is: 58,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.50 : 27,015 = 27,015 : x
  2. Step 2: Convert to fraction form
    12,415.50/27,015 = 27,015/x
  3. Step 3: Cross multiply
    12,415.50x = 27,015 × 27,015
  4. Step 4: Simplify right side
    12,415.50x = 729,810,225
  5. Step 5: Solve for x
    x = 729,810,225/12,415.50
  6. Step 6: Final answer
    x = 58,782.19

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.