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Finding the Fourth Proportional to 4,993.95, 6,891.96 and 2,756.31

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Solution

The fourth proportional to 4,993.95, 6,891.96 and 2,756.31 is: 3,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.95 : 6,891.96 = 2,756.31 : x
  2. Step 2: Convert to fraction form
    4,993.95/6,891.96 = 2,756.31/x
  3. Step 3: Cross multiply
    4,993.95x = 6,891.96 × 2,756.31
  4. Step 4: Simplify right side
    4,993.95x = 18,996,378.27
  5. Step 5: Solve for x
    x = 18,996,378.27/4,993.95
  6. Step 6: Final answer
    x = 3,803.88

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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.