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Finding the Fourth Proportional to 19,243.72, 28,868.62 and 8,150.48

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Solution

The fourth proportional to 19,243.72, 28,868.62 and 8,150.48 is: 12,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.72 : 28,868.62 = 8,150.48 : x
  2. Step 2: Convert to fraction form
    19,243.72/28,868.62 = 8,150.48/x
  3. Step 3: Cross multiply
    19,243.72x = 28,868.62 × 8,150.48
  4. Step 4: Simplify right side
    19,243.72x = 235,293,109.94
  5. Step 5: Solve for x
    x = 235,293,109.94/19,243.72
  6. Step 6: Final answer
    x = 12,227.01

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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.