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Finding the Fourth Proportional to 3,591.69, 5,383.54 and 1,511.07

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Solution

The fourth proportional to 3,591.69, 5,383.54 and 1,511.07 is: 2,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.69 : 5,383.54 = 1,511.07 : x
  2. Step 2: Convert to fraction form
    3,591.69/5,383.54 = 1,511.07/x
  3. Step 3: Cross multiply
    3,591.69x = 5,383.54 × 1,511.07
  4. Step 4: Simplify right side
    3,591.69x = 8,134,905.79
  5. Step 5: Solve for x
    x = 8,134,905.79/3,591.69
  6. Step 6: Final answer
    x = 2,264.92

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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.