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Finding the Third Proportional to 28,195 and 43,905

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Solution

The third proportional to 28,195 and 43,905 is: 68,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195 : 43,905 = 43,905 : x
  2. Step 2: Convert to fraction form
    28,195/43,905 = 43,905/x
  3. Step 3: Cross multiply
    28,195x = 43,905 × 43,905
  4. Step 4: Simplify right side
    28,195x = 1,927,649,025
  5. Step 5: Solve for x
    x = 1,927,649,025/28,195
  6. Step 6: Final answer
    x = 68,368.47

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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.