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Finding the Fourth Proportional to 2,702.89, 3,729.94 and 1,524.21

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Solution

The fourth proportional to 2,702.89, 3,729.94 and 1,524.21 is: 2,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.89 : 3,729.94 = 1,524.21 : x
  2. Step 2: Convert to fraction form
    2,702.89/3,729.94 = 1,524.21/x
  3. Step 3: Cross multiply
    2,702.89x = 3,729.94 × 1,524.21
  4. Step 4: Simplify right side
    2,702.89x = 5,685,211.85
  5. Step 5: Solve for x
    x = 5,685,211.85/2,702.89
  6. Step 6: Final answer
    x = 2,103.38

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1.5x scale

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.