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Finding the Fourth Proportional to 11,701.64, 17,555.52 and 3,910.52

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Solution

The fourth proportional to 11,701.64, 17,555.52 and 3,910.52 is: 5,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.64 : 17,555.52 = 3,910.52 : x
  2. Step 2: Convert to fraction form
    11,701.64/17,555.52 = 3,910.52/x
  3. Step 3: Cross multiply
    11,701.64x = 17,555.52 × 3,910.52
  4. Step 4: Simplify right side
    11,701.64x = 68,651,212.07
  5. Step 5: Solve for x
    x = 68,651,212.07/11,701.64
  6. Step 6: Final answer
    x = 5,866.80

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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.