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Finding the Fourth Proportional to 5,049.21, 6,953.21 and 3,928.26

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Solution

The fourth proportional to 5,049.21, 6,953.21 and 3,928.26 is: 5,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.21 : 6,953.21 = 3,928.26 : x
  2. Step 2: Convert to fraction form
    5,049.21/6,953.21 = 3,928.26/x
  3. Step 3: Cross multiply
    5,049.21x = 6,953.21 × 3,928.26
  4. Step 4: Simplify right side
    5,049.21x = 27,313,997.07
  5. Step 5: Solve for x
    x = 27,313,997.07/5,049.21
  6. Step 6: Final answer
    x = 5,409.56

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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.