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Finding the Fourth Proportional to 5,303.54, 7,942.53 and 3,105.74

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Solution

The fourth proportional to 5,303.54, 7,942.53 and 3,105.74 is: 4,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.54 : 7,942.53 = 3,105.74 : x
  2. Step 2: Convert to fraction form
    5,303.54/7,942.53 = 3,105.74/x
  3. Step 3: Cross multiply
    5,303.54x = 7,942.53 × 3,105.74
  4. Step 4: Simplify right side
    5,303.54x = 24,667,433.12
  5. Step 5: Solve for x
    x = 24,667,433.12/5,303.54
  6. Step 6: Final answer
    x = 4,651.13

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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.