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Finding the Third Proportional to 7,940.50 and 16,974

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Solution

The third proportional to 7,940.50 and 16,974 is: 36,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.50 : 16,974 = 16,974 : x
  2. Step 2: Convert to fraction form
    7,940.50/16,974 = 16,974/x
  3. Step 3: Cross multiply
    7,940.50x = 16,974 × 16,974
  4. Step 4: Simplify right side
    7,940.50x = 288,116,676
  5. Step 5: Solve for x
    x = 288,116,676/7,940.50
  6. Step 6: Final answer
    x = 36,284.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.