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Finding the Third Proportional to 1,954 and 2,631.50

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Solution

The third proportional to 1,954 and 2,631.50 is: 3,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954 : 2,631.50 = 2,631.50 : x
  2. Step 2: Convert to fraction form
    1,954/2,631.50 = 2,631.50/x
  3. Step 3: Cross multiply
    1,954x = 2,631.50 × 2,631.50
  4. Step 4: Simplify right side
    1,954x = 6,924,792.25
  5. Step 5: Solve for x
    x = 6,924,792.25/1,954
  6. Step 6: Final answer
    x = 3,543.91

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.