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Finding the Third Proportional to 4,954 and 7,969.50

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Solution

The third proportional to 4,954 and 7,969.50 is: 12,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,954 : 7,969.50 = 7,969.50 : x
  2. Step 2: Convert to fraction form
    4,954/7,969.50 = 7,969.50/x
  3. Step 3: Cross multiply
    4,954x = 7,969.50 × 7,969.50
  4. Step 4: Simplify right side
    4,954x = 63,512,930.25
  5. Step 5: Solve for x
    x = 63,512,930.25/4,954
  6. Step 6: Final answer
    x = 12,820.53

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.