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Finding the Third Proportional to 2,816 and 4,965.50

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Solution

The third proportional to 2,816 and 4,965.50 is: 8,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816 : 4,965.50 = 4,965.50 : x
  2. Step 2: Convert to fraction form
    2,816/4,965.50 = 4,965.50/x
  3. Step 3: Cross multiply
    2,816x = 4,965.50 × 4,965.50
  4. Step 4: Simplify right side
    2,816x = 24,656,190.25
  5. Step 5: Solve for x
    x = 24,656,190.25/2,816
  6. Step 6: Final answer
    x = 8,755.75

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.