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Finding the Third Proportional to 18,348.19 and 38,665.13

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Solution

The third proportional to 18,348.19 and 38,665.13 is: 81,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.19 : 38,665.13 = 38,665.13 : x
  2. Step 2: Convert to fraction form
    18,348.19/38,665.13 = 38,665.13/x
  3. Step 3: Cross multiply
    18,348.19x = 38,665.13 × 38,665.13
  4. Step 4: Simplify right side
    18,348.19x = 1,494,991,891.27
  5. Step 5: Solve for x
    x = 1,494,991,891.27/18,348.19
  6. Step 6: Final answer
    x = 81,479.00

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.