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Finding the Fourth Proportional to 5,216.11, 7,813.74 and 3,134.99

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Solution

The fourth proportional to 5,216.11, 7,813.74 and 3,134.99 is: 4,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.11 : 7,813.74 = 3,134.99 : x
  2. Step 2: Convert to fraction form
    5,216.11/7,813.74 = 3,134.99/x
  3. Step 3: Cross multiply
    5,216.11x = 7,813.74 × 3,134.99
  4. Step 4: Simplify right side
    5,216.11x = 24,495,942.02
  5. Step 5: Solve for x
    x = 24,495,942.02/5,216.11
  6. Step 6: Final answer
    x = 4,696.21

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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.