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Finding the Third Proportional to 21,968 and 47,913

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Solution

The third proportional to 21,968 and 47,913 is: 104,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968 : 47,913 = 47,913 : x
  2. Step 2: Convert to fraction form
    21,968/47,913 = 47,913/x
  3. Step 3: Cross multiply
    21,968x = 47,913 × 47,913
  4. Step 4: Simplify right side
    21,968x = 2,295,655,569
  5. Step 5: Solve for x
    x = 2,295,655,569/21,968
  6. Step 6: Final answer
    x = 104,499.98

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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.