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Finding the Third Proportional to 1,411 and 3,091

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Solution

The third proportional to 1,411 and 3,091 is: 6,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411 : 3,091 = 3,091 : x
  2. Step 2: Convert to fraction form
    1,411/3,091 = 3,091/x
  3. Step 3: Cross multiply
    1,411x = 3,091 × 3,091
  4. Step 4: Simplify right side
    1,411x = 9,554,281
  5. Step 5: Solve for x
    x = 9,554,281/1,411
  6. Step 6: Final answer
    x = 6,771.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.