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Finding the Fourth Proportional to 5,330.53, 7,994.85 and 3,136.69

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Solution

The fourth proportional to 5,330.53, 7,994.85 and 3,136.69 is: 4,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.53 : 7,994.85 = 3,136.69 : x
  2. Step 2: Convert to fraction form
    5,330.53/7,994.85 = 3,136.69/x
  3. Step 3: Cross multiply
    5,330.53x = 7,994.85 × 3,136.69
  4. Step 4: Simplify right side
    5,330.53x = 25,077,366.05
  5. Step 5: Solve for x
    x = 25,077,366.05/5,330.53
  6. Step 6: Final answer
    x = 4,704.48

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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.