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Finding the Third Proportional to 1,613.67 and 3,518.44

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Solution

The third proportional to 1,613.67 and 3,518.44 is: 7,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.67 : 3,518.44 = 3,518.44 : x
  2. Step 2: Convert to fraction form
    1,613.67/3,518.44 = 3,518.44/x
  3. Step 3: Cross multiply
    1,613.67x = 3,518.44 × 3,518.44
  4. Step 4: Simplify right side
    1,613.67x = 12,379,402.44
  5. Step 5: Solve for x
    x = 12,379,402.44/1,613.67
  6. Step 6: Final answer
    x = 7,671.57

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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.