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Finding the Third Proportional to 1,354.50 and 2,891

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Solution

The third proportional to 1,354.50 and 2,891 is: 6,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.50 : 2,891 = 2,891 : x
  2. Step 2: Convert to fraction form
    1,354.50/2,891 = 2,891/x
  3. Step 3: Cross multiply
    1,354.50x = 2,891 × 2,891
  4. Step 4: Simplify right side
    1,354.50x = 8,357,881
  5. Step 5: Solve for x
    x = 8,357,881/1,354.50
  6. Step 6: Final answer
    x = 6,170.45

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.