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Finding the Third Proportional to 45,240 and 68,796

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Solution

The third proportional to 45,240 and 68,796 is: 104,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,240 : 68,796 = 68,796 : x
  2. Step 2: Convert to fraction form
    45,240/68,796 = 68,796/x
  3. Step 3: Cross multiply
    45,240x = 68,796 × 68,796
  4. Step 4: Simplify right side
    45,240x = 4,732,889,616
  5. Step 5: Solve for x
    x = 4,732,889,616/45,240
  6. Step 6: Final answer
    x = 104,617.37

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.