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Finding the Fourth Proportional to 11,151.48, 16,726.74 and 2,943.48

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Solution

The fourth proportional to 11,151.48, 16,726.74 and 2,943.48 is: 4,415.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.48 : 16,726.74 = 2,943.48 : x
  2. Step 2: Convert to fraction form
    11,151.48/16,726.74 = 2,943.48/x
  3. Step 3: Cross multiply
    11,151.48x = 16,726.74 × 2,943.48
  4. Step 4: Simplify right side
    11,151.48x = 49,234,824.66
  5. Step 5: Solve for x
    x = 49,234,824.66/11,151.48
  6. Step 6: Final answer
    x = 4,415.09

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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.