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Finding the Fourth Proportional to 3,567.76, 5,352.72 and 1,487.44

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Solution

The fourth proportional to 3,567.76, 5,352.72 and 1,487.44 is: 2,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567.76 : 5,352.72 = 1,487.44 : x
  2. Step 2: Convert to fraction form
    3,567.76/5,352.72 = 1,487.44/x
  3. Step 3: Cross multiply
    3,567.76x = 5,352.72 × 1,487.44
  4. Step 4: Simplify right side
    3,567.76x = 7,961,849.84
  5. Step 5: Solve for x
    x = 7,961,849.84/3,567.76
  6. Step 6: Final answer
    x = 2,231.61

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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.