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Finding the Fourth Proportional to 3,889.53, 5,826.53 and 2,653.88

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Solution

The fourth proportional to 3,889.53, 5,826.53 and 2,653.88 is: 3,975.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.53 : 5,826.53 = 2,653.88 : x
  2. Step 2: Convert to fraction form
    3,889.53/5,826.53 = 2,653.88/x
  3. Step 3: Cross multiply
    3,889.53x = 5,826.53 × 2,653.88
  4. Step 4: Simplify right side
    3,889.53x = 15,462,869.03
  5. Step 5: Solve for x
    x = 15,462,869.03/3,889.53
  6. Step 6: Final answer
    x = 3,975.51

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1.5x scale

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.