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Finding the Third Proportional to 7,674.75 and 12,727.13

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Solution

The third proportional to 7,674.75 and 12,727.13 is: 21,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.75 : 12,727.13 = 12,727.13 : x
  2. Step 2: Convert to fraction form
    7,674.75/12,727.13 = 12,727.13/x
  3. Step 3: Cross multiply
    7,674.75x = 12,727.13 × 12,727.13
  4. Step 4: Simplify right side
    7,674.75x = 161,979,710.77
  5. Step 5: Solve for x
    x = 161,979,710.77/7,674.75
  6. Step 6: Final answer
    x = 21,105.54

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.