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Finding the Third Proportional to 6,790.50 and 6,922.13

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Solution

The third proportional to 6,790.50 and 6,922.13 is: 7,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.50 : 6,922.13 = 6,922.13 : x
  2. Step 2: Convert to fraction form
    6,790.50/6,922.13 = 6,922.13/x
  3. Step 3: Cross multiply
    6,790.50x = 6,922.13 × 6,922.13
  4. Step 4: Simplify right side
    6,790.50x = 47,915,814.52
  5. Step 5: Solve for x
    x = 47,915,814.52/6,790.50
  6. Step 6: Final answer
    x = 7,056.30

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Why These Related Problems?

These problems maintain the same ratio (1.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.