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Finding the Third Proportional to 1,938 and 4,816

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Solution

The third proportional to 1,938 and 4,816 is: 11,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938 : 4,816 = 4,816 : x
  2. Step 2: Convert to fraction form
    1,938/4,816 = 4,816/x
  3. Step 3: Cross multiply
    1,938x = 4,816 × 4,816
  4. Step 4: Simplify right side
    1,938x = 23,193,856
  5. Step 5: Solve for x
    x = 23,193,856/1,938
  6. Step 6: Final answer
    x = 11,967.93

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.