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Finding the Third Proportional to 4,923.66 and 7,389.09

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Solution

The third proportional to 4,923.66 and 7,389.09 is: 11,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,923.66 : 7,389.09 = 7,389.09 : x
  2. Step 2: Convert to fraction form
    4,923.66/7,389.09 = 7,389.09/x
  3. Step 3: Cross multiply
    4,923.66x = 7,389.09 × 7,389.09
  4. Step 4: Simplify right side
    4,923.66x = 54,598,706.45
  5. Step 5: Solve for x
    x = 54,598,706.45/4,923.66
  6. Step 6: Final answer
    x = 11,089.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.