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Finding the Fourth Proportional to 5,364.78, 8,044.20 and 1,853.16

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Solution

The fourth proportional to 5,364.78, 8,044.20 and 1,853.16 is: 2,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.78 : 8,044.20 = 1,853.16 : x
  2. Step 2: Convert to fraction form
    5,364.78/8,044.20 = 1,853.16/x
  3. Step 3: Cross multiply
    5,364.78x = 8,044.20 × 1,853.16
  4. Step 4: Simplify right side
    5,364.78x = 14,907,189.67
  5. Step 5: Solve for x
    x = 14,907,189.67/5,364.78
  6. Step 6: Final answer
    x = 2,778.71

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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.