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Finding the Fourth Proportional to 5,256.93, 7,255.80 and 3,019.98

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Solution

The fourth proportional to 5,256.93, 7,255.80 and 3,019.98 is: 4,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.93 : 7,255.80 = 3,019.98 : x
  2. Step 2: Convert to fraction form
    5,256.93/7,255.80 = 3,019.98/x
  3. Step 3: Cross multiply
    5,256.93x = 7,255.80 × 3,019.98
  4. Step 4: Simplify right side
    5,256.93x = 21,912,370.88
  5. Step 5: Solve for x
    x = 21,912,370.88/5,256.93
  6. Step 6: Final answer
    x = 4,168.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.