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Finding the Fourth Proportional to 3,049.74, 4,574.57 and 969.87

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Solution

The fourth proportional to 3,049.74, 4,574.57 and 969.87 is: 1,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.74 : 4,574.57 = 969.87 : x
  2. Step 2: Convert to fraction form
    3,049.74/4,574.57 = 969.87/x
  3. Step 3: Cross multiply
    3,049.74x = 4,574.57 × 969.87
  4. Step 4: Simplify right side
    3,049.74x = 4,436,733.36
  5. Step 5: Solve for x
    x = 4,436,733.36/3,049.74
  6. Step 6: Final answer
    x = 1,454.79

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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.