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Finding the Fourth Proportional to 19,255.44, 28,865.88 and 7,576.68

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Solution

The fourth proportional to 19,255.44, 28,865.88 and 7,576.68 is: 11,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.44 : 28,865.88 = 7,576.68 : x
  2. Step 2: Convert to fraction form
    19,255.44/28,865.88 = 7,576.68/x
  3. Step 3: Cross multiply
    19,255.44x = 28,865.88 × 7,576.68
  4. Step 4: Simplify right side
    19,255.44x = 218,707,535.68
  5. Step 5: Solve for x
    x = 218,707,535.68/19,255.44
  6. Step 6: Final answer
    x = 11,358.22

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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.