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Finding the Third Proportional to 18,738.84 and 28,491.94

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Solution

The third proportional to 18,738.84 and 28,491.94 is: 43,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.84 : 28,491.94 = 28,491.94 : x
  2. Step 2: Convert to fraction form
    18,738.84/28,491.94 = 28,491.94/x
  3. Step 3: Cross multiply
    18,738.84x = 28,491.94 × 28,491.94
  4. Step 4: Simplify right side
    18,738.84x = 811,790,502.50
  5. Step 5: Solve for x
    x = 811,790,502.50/18,738.84
  6. Step 6: Final answer
    x = 43,321.27

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.