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Finding the Third Proportional to 7,786.13 and 11,476.69

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Solution

The third proportional to 7,786.13 and 11,476.69 is: 16,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.13 : 11,476.69 = 11,476.69 : x
  2. Step 2: Convert to fraction form
    7,786.13/11,476.69 = 11,476.69/x
  3. Step 3: Cross multiply
    7,786.13x = 11,476.69 × 11,476.69
  4. Step 4: Simplify right side
    7,786.13x = 131,714,355.97
  5. Step 5: Solve for x
    x = 131,714,355.97/7,786.13
  6. Step 6: Final answer
    x = 16,916.55

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.