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Finding the Third Proportional to 14,114.75 and 31,109

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Solution

The third proportional to 14,114.75 and 31,109 is: 68,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.75 : 31,109 = 31,109 : x
  2. Step 2: Convert to fraction form
    14,114.75/31,109 = 31,109/x
  3. Step 3: Cross multiply
    14,114.75x = 31,109 × 31,109
  4. Step 4: Simplify right side
    14,114.75x = 967,769,881
  5. Step 5: Solve for x
    x = 967,769,881/14,114.75
  6. Step 6: Final answer
    x = 68,564.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.