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Finding the Third Proportional to 3,370 and 4,939

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Solution

The third proportional to 3,370 and 4,939 is: 7,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370 : 4,939 = 4,939 : x
  2. Step 2: Convert to fraction form
    3,370/4,939 = 4,939/x
  3. Step 3: Cross multiply
    3,370x = 4,939 × 4,939
  4. Step 4: Simplify right side
    3,370x = 24,393,721
  5. Step 5: Solve for x
    x = 24,393,721/3,370
  6. Step 6: Final answer
    x = 7,238.49

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.