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Finding the Fourth Proportional to 4,267.98, 6,401 and 1,531.98

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Solution

The fourth proportional to 4,267.98, 6,401 and 1,531.98 is: 2,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.98 : 6,401 = 1,531.98 : x
  2. Step 2: Convert to fraction form
    4,267.98/6,401 = 1,531.98/x
  3. Step 3: Cross multiply
    4,267.98x = 6,401 × 1,531.98
  4. Step 4: Simplify right side
    4,267.98x = 9,806,203.98
  5. Step 5: Solve for x
    x = 9,806,203.98/4,267.98
  6. Step 6: Final answer
    x = 2,297.62

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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.