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Finding the Third Proportional to 21,757.50 and 47,295

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Solution

The third proportional to 21,757.50 and 47,295 is: 102,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.50 : 47,295 = 47,295 : x
  2. Step 2: Convert to fraction form
    21,757.50/47,295 = 47,295/x
  3. Step 3: Cross multiply
    21,757.50x = 47,295 × 47,295
  4. Step 4: Simplify right side
    21,757.50x = 2,236,817,025
  5. Step 5: Solve for x
    x = 2,236,817,025/21,757.50
  6. Step 6: Final answer
    x = 102,806.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.