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Finding the Third Proportional to 19,992 and 43,245

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Solution

The third proportional to 19,992 and 43,245 is: 93,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992 : 43,245 = 43,245 : x
  2. Step 2: Convert to fraction form
    19,992/43,245 = 43,245/x
  3. Step 3: Cross multiply
    19,992x = 43,245 × 43,245
  4. Step 4: Simplify right side
    19,992x = 1,870,130,025
  5. Step 5: Solve for x
    x = 1,870,130,025/19,992
  6. Step 6: Final answer
    x = 93,543.92

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.