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Finding the Fourth Proportional to 3,855.06, 5,323.05 and 3,560.22

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Solution

The fourth proportional to 3,855.06, 5,323.05 and 3,560.22 is: 4,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.06 : 5,323.05 = 3,560.22 : x
  2. Step 2: Convert to fraction form
    3,855.06/5,323.05 = 3,560.22/x
  3. Step 3: Cross multiply
    3,855.06x = 5,323.05 × 3,560.22
  4. Step 4: Simplify right side
    3,855.06x = 18,951,229.07
  5. Step 5: Solve for x
    x = 18,951,229.07/3,855.06
  6. Step 6: Final answer
    x = 4,915.94

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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.