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Finding the Fourth Proportional to 4,803.95, 6,629.48 and 2,679.61

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Solution

The fourth proportional to 4,803.95, 6,629.48 and 2,679.61 is: 3,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.95 : 6,629.48 = 2,679.61 : x
  2. Step 2: Convert to fraction form
    4,803.95/6,629.48 = 2,679.61/x
  3. Step 3: Cross multiply
    4,803.95x = 6,629.48 × 2,679.61
  4. Step 4: Simplify right side
    4,803.95x = 17,764,390.93
  5. Step 5: Solve for x
    x = 17,764,390.93/4,803.95
  6. Step 6: Final answer
    x = 3,697.88

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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.