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Finding the Third Proportional to 1,916 and 4,577

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Solution

The third proportional to 1,916 and 4,577 is: 10,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916 : 4,577 = 4,577 : x
  2. Step 2: Convert to fraction form
    1,916/4,577 = 4,577/x
  3. Step 3: Cross multiply
    1,916x = 4,577 × 4,577
  4. Step 4: Simplify right side
    1,916x = 20,948,929
  5. Step 5: Solve for x
    x = 20,948,929/1,916
  6. Step 6: Final answer
    x = 10,933.68

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.