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Finding the Third Proportional to 21,768.75 and 24,900.75

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Solution

The third proportional to 21,768.75 and 24,900.75 is: 28,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.75 : 24,900.75 = 24,900.75 : x
  2. Step 2: Convert to fraction form
    21,768.75/24,900.75 = 24,900.75/x
  3. Step 3: Cross multiply
    21,768.75x = 24,900.75 × 24,900.75
  4. Step 4: Simplify right side
    21,768.75x = 620,047,350.56
  5. Step 5: Solve for x
    x = 620,047,350.56/21,768.75
  6. Step 6: Final answer
    x = 28,483.37

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.