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Finding the Third Proportional to 21,833 and 47,555

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Solution

The third proportional to 21,833 and 47,555 is: 103,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833 : 47,555 = 47,555 : x
  2. Step 2: Convert to fraction form
    21,833/47,555 = 47,555/x
  3. Step 3: Cross multiply
    21,833x = 47,555 × 47,555
  4. Step 4: Simplify right side
    21,833x = 2,261,478,025
  5. Step 5: Solve for x
    x = 2,261,478,025/21,833
  6. Step 6: Final answer
    x = 103,580.73

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.