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Finding the Fourth Proportional to 19,377.68, 29,038.74 and 11,040.44

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Solution

The fourth proportional to 19,377.68, 29,038.74 and 11,040.44 is: 16,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.68 : 29,038.74 = 11,040.44 : x
  2. Step 2: Convert to fraction form
    19,377.68/29,038.74 = 11,040.44/x
  3. Step 3: Cross multiply
    19,377.68x = 29,038.74 × 11,040.44
  4. Step 4: Simplify right side
    19,377.68x = 320,600,466.65
  5. Step 5: Solve for x
    x = 320,600,466.65/19,377.68
  6. Step 6: Final answer
    x = 16,544.83

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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.