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Finding the Fourth Proportional to 4,803.56, 7,230.80 and 3,426.42

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Solution

The fourth proportional to 4,803.56, 7,230.80 and 3,426.42 is: 5,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.56 : 7,230.80 = 3,426.42 : x
  2. Step 2: Convert to fraction form
    4,803.56/7,230.80 = 3,426.42/x
  3. Step 3: Cross multiply
    4,803.56x = 7,230.80 × 3,426.42
  4. Step 4: Simplify right side
    4,803.56x = 24,775,757.74
  5. Step 5: Solve for x
    x = 24,775,757.74/4,803.56
  6. Step 6: Final answer
    x = 5,157.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.