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Finding the Fourth Proportional to 11,584, 17,379.20 and 3,376

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Solution

The fourth proportional to 11,584, 17,379.20 and 3,376 is: 5,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584 : 17,379.20 = 3,376 : x
  2. Step 2: Convert to fraction form
    11,584/17,379.20 = 3,376/x
  3. Step 3: Cross multiply
    11,584x = 17,379.20 × 3,376
  4. Step 4: Simplify right side
    11,584x = 58,672,179.20
  5. Step 5: Solve for x
    x = 58,672,179.20/11,584
  6. Step 6: Final answer
    x = 5,064.93

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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.