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Finding the Fourth Proportional to 11,133.99, 16,689.42 and 6,964.44

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Solution

The fourth proportional to 11,133.99, 16,689.42 and 6,964.44 is: 10,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.99 : 16,689.42 = 6,964.44 : x
  2. Step 2: Convert to fraction form
    11,133.99/16,689.42 = 6,964.44/x
  3. Step 3: Cross multiply
    11,133.99x = 16,689.42 × 6,964.44
  4. Step 4: Simplify right side
    11,133.99x = 116,232,464.22
  5. Step 5: Solve for x
    x = 116,232,464.22/11,133.99
  6. Step 6: Final answer
    x = 10,439.43

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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.