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Finding the Fourth Proportional to 3,335.90, 5,004.72 and 1,255.92

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Solution

The fourth proportional to 3,335.90, 5,004.72 and 1,255.92 is: 1,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.90 : 5,004.72 = 1,255.92 : x
  2. Step 2: Convert to fraction form
    3,335.90/5,004.72 = 1,255.92/x
  3. Step 3: Cross multiply
    3,335.90x = 5,004.72 × 1,255.92
  4. Step 4: Simplify right side
    3,335.90x = 6,285,537.33
  5. Step 5: Solve for x
    x = 6,285,537.33/3,335.90
  6. Step 6: Final answer
    x = 1,884.21

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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.