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Finding the Third Proportional to 949.22 and 1,515.80

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Solution

The third proportional to 949.22 and 1,515.80 is: 2,420.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.22 : 1,515.80 = 1,515.80 : x
  2. Step 2: Convert to fraction form
    949.22/1,515.80 = 1,515.80/x
  3. Step 3: Cross multiply
    949.22x = 1,515.80 × 1,515.80
  4. Step 4: Simplify right side
    949.22x = 2,297,640.17
  5. Step 5: Solve for x
    x = 2,297,640.17/949.22
  6. Step 6: Final answer
    x = 2,420.56

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.