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Finding the Third Proportional to 9,615.38 and 20,768.53

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Solution

The third proportional to 9,615.38 and 20,768.53 is: 44,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.38 : 20,768.53 = 20,768.53 : x
  2. Step 2: Convert to fraction form
    9,615.38/20,768.53 = 20,768.53/x
  3. Step 3: Cross multiply
    9,615.38x = 20,768.53 × 20,768.53
  4. Step 4: Simplify right side
    9,615.38x = 431,331,890.28
  5. Step 5: Solve for x
    x = 431,331,890.28/9,615.38
  6. Step 6: Final answer
    x = 44,858.56

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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.