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Finding the Third Proportional to 7,826.25 and 16,790.25

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Solution

The third proportional to 7,826.25 and 16,790.25 is: 36,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.25 : 16,790.25 = 16,790.25 : x
  2. Step 2: Convert to fraction form
    7,826.25/16,790.25 = 16,790.25/x
  3. Step 3: Cross multiply
    7,826.25x = 16,790.25 × 16,790.25
  4. Step 4: Simplify right side
    7,826.25x = 281,912,495.06
  5. Step 5: Solve for x
    x = 281,912,495.06/7,826.25
  6. Step 6: Final answer
    x = 36,021.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.