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Finding the Fourth Proportional to 3,867.91, 5,801.86 and 1,559.41

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Solution

The fourth proportional to 3,867.91, 5,801.86 and 1,559.41 is: 2,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.91 : 5,801.86 = 1,559.41 : x
  2. Step 2: Convert to fraction form
    3,867.91/5,801.86 = 1,559.41/x
  3. Step 3: Cross multiply
    3,867.91x = 5,801.86 × 1,559.41
  4. Step 4: Simplify right side
    3,867.91x = 9,047,478.50
  5. Step 5: Solve for x
    x = 9,047,478.50/3,867.91
  6. Step 6: Final answer
    x = 2,339.11

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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.