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Finding the Third Proportional to 3,162 and 4,959.50

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Solution

The third proportional to 3,162 and 4,959.50 is: 7,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162 : 4,959.50 = 4,959.50 : x
  2. Step 2: Convert to fraction form
    3,162/4,959.50 = 4,959.50/x
  3. Step 3: Cross multiply
    3,162x = 4,959.50 × 4,959.50
  4. Step 4: Simplify right side
    3,162x = 24,596,640.25
  5. Step 5: Solve for x
    x = 24,596,640.25/3,162
  6. Step 6: Final answer
    x = 7,778.82

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.