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Finding the Fourth Proportional to 3,777.61, 5,213.04 and 2,099.02

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Solution

The fourth proportional to 3,777.61, 5,213.04 and 2,099.02 is: 2,896.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.61 : 5,213.04 = 2,099.02 : x
  2. Step 2: Convert to fraction form
    3,777.61/5,213.04 = 2,099.02/x
  3. Step 3: Cross multiply
    3,777.61x = 5,213.04 × 2,099.02
  4. Step 4: Simplify right side
    3,777.61x = 10,942,275.22
  5. Step 5: Solve for x
    x = 10,942,275.22/3,777.61
  6. Step 6: Final answer
    x = 2,896.61

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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.