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Finding the Third Proportional to 28,158 and 43,968

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Solution

The third proportional to 28,158 and 43,968 is: 68,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158 : 43,968 = 43,968 : x
  2. Step 2: Convert to fraction form
    28,158/43,968 = 43,968/x
  3. Step 3: Cross multiply
    28,158x = 43,968 × 43,968
  4. Step 4: Simplify right side
    28,158x = 1,933,185,024
  5. Step 5: Solve for x
    x = 1,933,185,024/28,158
  6. Step 6: Final answer
    x = 68,654.91

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.