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Finding the Third Proportional to 18,709.31 and 28,063.97

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Solution

The third proportional to 18,709.31 and 28,063.97 is: 42,095.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.31 : 28,063.97 = 28,063.97 : x
  2. Step 2: Convert to fraction form
    18,709.31/28,063.97 = 28,063.97/x
  3. Step 3: Cross multiply
    18,709.31x = 28,063.97 × 28,063.97
  4. Step 4: Simplify right side
    18,709.31x = 787,586,342.00
  5. Step 5: Solve for x
    x = 787,586,342.00/18,709.31
  6. Step 6: Final answer
    x = 42,095.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.