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Finding the Fourth Proportional to 15,623.33, 23,435.09 and 6,389.33

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Solution

The fourth proportional to 15,623.33, 23,435.09 and 6,389.33 is: 9,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.33 : 23,435.09 = 6,389.33 : x
  2. Step 2: Convert to fraction form
    15,623.33/23,435.09 = 6,389.33/x
  3. Step 3: Cross multiply
    15,623.33x = 23,435.09 × 6,389.33
  4. Step 4: Simplify right side
    15,623.33x = 149,734,491.64
  5. Step 5: Solve for x
    x = 149,734,491.64/15,623.33
  6. Step 6: Final answer
    x = 9,584.03

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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.