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Finding the Fourth Proportional to 4,063.98, 6,105.72 and 2,605.98

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Solution

The fourth proportional to 4,063.98, 6,105.72 and 2,605.98 is: 3,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,063.98 : 6,105.72 = 2,605.98 : x
  2. Step 2: Convert to fraction form
    4,063.98/6,105.72 = 2,605.98/x
  3. Step 3: Cross multiply
    4,063.98x = 6,105.72 × 2,605.98
  4. Step 4: Simplify right side
    4,063.98x = 15,911,384.21
  5. Step 5: Solve for x
    x = 15,911,384.21/4,063.98
  6. Step 6: Final answer
    x = 3,915.22

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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.