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Finding the Third Proportional to 2,091 and 4,554

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Solution

The third proportional to 2,091 and 4,554 is: 9,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091 : 4,554 = 4,554 : x
  2. Step 2: Convert to fraction form
    2,091/4,554 = 4,554/x
  3. Step 3: Cross multiply
    2,091x = 4,554 × 4,554
  4. Step 4: Simplify right side
    2,091x = 20,738,916
  5. Step 5: Solve for x
    x = 20,738,916/2,091
  6. Step 6: Final answer
    x = 9,918.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.