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Finding the Fourth Proportional to 4,449.72, 6,674.80 and 1,984.70

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Solution

The fourth proportional to 4,449.72, 6,674.80 and 1,984.70 is: 2,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.72 : 6,674.80 = 1,984.70 : x
  2. Step 2: Convert to fraction form
    4,449.72/6,674.80 = 1,984.70/x
  3. Step 3: Cross multiply
    4,449.72x = 6,674.80 × 1,984.70
  4. Step 4: Simplify right side
    4,449.72x = 13,247,475.56
  5. Step 5: Solve for x
    x = 13,247,475.56/4,449.72
  6. Step 6: Final answer
    x = 2,977.15

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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.