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Finding the Third Proportional to 7,431.75 and 17,317.13

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Solution

The third proportional to 7,431.75 and 17,317.13 is: 40,351.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.75 : 17,317.13 = 17,317.13 : x
  2. Step 2: Convert to fraction form
    7,431.75/17,317.13 = 17,317.13/x
  3. Step 3: Cross multiply
    7,431.75x = 17,317.13 × 17,317.13
  4. Step 4: Simplify right side
    7,431.75x = 299,882,818.27
  5. Step 5: Solve for x
    x = 299,882,818.27/7,431.75
  6. Step 6: Final answer
    x = 40,351.58

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.