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Finding the Third Proportional to 21,651.75 and 47,301

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Solution

The third proportional to 21,651.75 and 47,301 is: 103,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.75 : 47,301 = 47,301 : x
  2. Step 2: Convert to fraction form
    21,651.75/47,301 = 47,301/x
  3. Step 3: Cross multiply
    21,651.75x = 47,301 × 47,301
  4. Step 4: Simplify right side
    21,651.75x = 2,237,384,601
  5. Step 5: Solve for x
    x = 2,237,384,601/21,651.75
  6. Step 6: Final answer
    x = 103,335.05

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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.