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Finding the Third Proportional to 4,418.50 and 4,879

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Solution

The third proportional to 4,418.50 and 4,879 is: 5,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418.50 : 4,879 = 4,879 : x
  2. Step 2: Convert to fraction form
    4,418.50/4,879 = 4,879/x
  3. Step 3: Cross multiply
    4,418.50x = 4,879 × 4,879
  4. Step 4: Simplify right side
    4,418.50x = 23,804,641
  5. Step 5: Solve for x
    x = 23,804,641/4,418.50
  6. Step 6: Final answer
    x = 5,387.49

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These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.