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Finding the Fourth Proportional to 11,620.53, 17,414.73 and 5,366.79

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Solution

The fourth proportional to 11,620.53, 17,414.73 and 5,366.79 is: 8,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.53 : 17,414.73 = 5,366.79 : x
  2. Step 2: Convert to fraction form
    11,620.53/17,414.73 = 5,366.79/x
  3. Step 3: Cross multiply
    11,620.53x = 17,414.73 × 5,366.79
  4. Step 4: Simplify right side
    11,620.53x = 93,461,198.82
  5. Step 5: Solve for x
    x = 93,461,198.82/11,620.53
  6. Step 6: Final answer
    x = 8,042.77

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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.