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Finding the Third Proportional to 1,772 and 4,406

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Solution

The third proportional to 1,772 and 4,406 is: 10,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772 : 4,406 = 4,406 : x
  2. Step 2: Convert to fraction form
    1,772/4,406 = 4,406/x
  3. Step 3: Cross multiply
    1,772x = 4,406 × 4,406
  4. Step 4: Simplify right side
    1,772x = 19,412,836
  5. Step 5: Solve for x
    x = 19,412,836/1,772
  6. Step 6: Final answer
    x = 10,955.33

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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.