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Finding the Third Proportional to 28,736 and 41,989

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Solution

The third proportional to 28,736 and 41,989 is: 61,354.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736 : 41,989 = 41,989 : x
  2. Step 2: Convert to fraction form
    28,736/41,989 = 41,989/x
  3. Step 3: Cross multiply
    28,736x = 41,989 × 41,989
  4. Step 4: Simplify right side
    28,736x = 1,763,076,121
  5. Step 5: Solve for x
    x = 1,763,076,121/28,736
  6. Step 6: Final answer
    x = 61,354.26

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.