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Finding the Fourth Proportional to 22,180, 33,273.96 and 7,389.76

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Solution

The fourth proportional to 22,180, 33,273.96 and 7,389.76 is: 11,085.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180 : 33,273.96 = 7,389.76 : x
  2. Step 2: Convert to fraction form
    22,180/33,273.96 = 7,389.76/x
  3. Step 3: Cross multiply
    22,180x = 33,273.96 × 7,389.76
  4. Step 4: Simplify right side
    22,180x = 245,886,578.65
  5. Step 5: Solve for x
    x = 245,886,578.65/22,180
  6. Step 6: Final answer
    x = 11,085.96

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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.