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Finding the Third Proportional to 20,716.50 and 49,396.50

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Solution

The third proportional to 20,716.50 and 49,396.50 is: 117,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.50 : 49,396.50 = 49,396.50 : x
  2. Step 2: Convert to fraction form
    20,716.50/49,396.50 = 49,396.50/x
  3. Step 3: Cross multiply
    20,716.50x = 49,396.50 × 49,396.50
  4. Step 4: Simplify right side
    20,716.50x = 2,440,014,212.25
  5. Step 5: Solve for x
    x = 2,440,014,212.25/20,716.50
  6. Step 6: Final answer
    x = 117,781.20

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.