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Finding the Fourth Proportional to 11,406.88, 17,121.08 and 5,864.11

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Solution

The fourth proportional to 11,406.88, 17,121.08 and 5,864.11 is: 8,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.88 : 17,121.08 = 5,864.11 : x
  2. Step 2: Convert to fraction form
    11,406.88/17,121.08 = 5,864.11/x
  3. Step 3: Cross multiply
    11,406.88x = 17,121.08 × 5,864.11
  4. Step 4: Simplify right side
    11,406.88x = 100,399,896.44
  5. Step 5: Solve for x
    x = 100,399,896.44/11,406.88
  6. Step 6: Final answer
    x = 8,801.70

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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.