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Finding the Third Proportional to 21,968 and 47,416

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Solution

The third proportional to 21,968 and 47,416 is: 102,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968 : 47,416 = 47,416 : x
  2. Step 2: Convert to fraction form
    21,968/47,416 = 47,416/x
  3. Step 3: Cross multiply
    21,968x = 47,416 × 47,416
  4. Step 4: Simplify right side
    21,968x = 2,248,277,056
  5. Step 5: Solve for x
    x = 2,248,277,056/21,968
  6. Step 6: Final answer
    x = 102,343.27

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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.