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Finding the Fourth Proportional to 5,309.28, 7,955.28 and 3,841.56

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Solution

The fourth proportional to 5,309.28, 7,955.28 and 3,841.56 is: 5,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.28 : 7,955.28 = 3,841.56 : x
  2. Step 2: Convert to fraction form
    5,309.28/7,955.28 = 3,841.56/x
  3. Step 3: Cross multiply
    5,309.28x = 7,955.28 × 3,841.56
  4. Step 4: Simplify right side
    5,309.28x = 30,560,685.44
  5. Step 5: Solve for x
    x = 30,560,685.44/5,309.28
  6. Step 6: Final answer
    x = 5,756.09

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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.