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Finding the Fourth Proportional to 2,700.46, 4,049.55 and 851.08

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Solution

The fourth proportional to 2,700.46, 4,049.55 and 851.08 is: 1,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.46 : 4,049.55 = 851.08 : x
  2. Step 2: Convert to fraction form
    2,700.46/4,049.55 = 851.08/x
  3. Step 3: Cross multiply
    2,700.46x = 4,049.55 × 851.08
  4. Step 4: Simplify right side
    2,700.46x = 3,446,491.01
  5. Step 5: Solve for x
    x = 3,446,491.01/2,700.46
  6. Step 6: Final answer
    x = 1,276.26

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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.