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Finding the Fourth Proportional to 11,701.97, 17,552.95 and 3,910.78

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Solution

The fourth proportional to 11,701.97, 17,552.95 and 3,910.78 is: 5,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.97 : 17,552.95 = 3,910.78 : x
  2. Step 2: Convert to fraction form
    11,701.97/17,552.95 = 3,910.78/x
  3. Step 3: Cross multiply
    11,701.97x = 17,552.95 × 3,910.78
  4. Step 4: Simplify right side
    11,701.97x = 68,645,759.96
  5. Step 5: Solve for x
    x = 68,645,759.96/11,701.97
  6. Step 6: Final answer
    x = 5,866.17

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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.