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Finding the Fourth Proportional to 4,912.76, 7,369.14 and 1,449.74

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Solution

The fourth proportional to 4,912.76, 7,369.14 and 1,449.74 is: 2,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.76 : 7,369.14 = 1,449.74 : x
  2. Step 2: Convert to fraction form
    4,912.76/7,369.14 = 1,449.74/x
  3. Step 3: Cross multiply
    4,912.76x = 7,369.14 × 1,449.74
  4. Step 4: Simplify right side
    4,912.76x = 10,683,337.02
  5. Step 5: Solve for x
    x = 10,683,337.02/4,912.76
  6. Step 6: Final answer
    x = 2,174.61

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Similar ratio
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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.