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Finding the Third Proportional to 8,235.50 and 18,313

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Solution

The third proportional to 8,235.50 and 18,313 is: 40,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.50 : 18,313 = 18,313 : x
  2. Step 2: Convert to fraction form
    8,235.50/18,313 = 18,313/x
  3. Step 3: Cross multiply
    8,235.50x = 18,313 × 18,313
  4. Step 4: Simplify right side
    8,235.50x = 335,365,969
  5. Step 5: Solve for x
    x = 335,365,969/8,235.50
  6. Step 6: Final answer
    x = 40,721.99

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.