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Finding the Fourth Proportional to 3,564.55, 5,344.90 and 1,615.69

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Solution

The fourth proportional to 3,564.55, 5,344.90 and 1,615.69 is: 2,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,564.55 : 5,344.90 = 1,615.69 : x
  2. Step 2: Convert to fraction form
    3,564.55/5,344.90 = 1,615.69/x
  3. Step 3: Cross multiply
    3,564.55x = 5,344.90 × 1,615.69
  4. Step 4: Simplify right side
    3,564.55x = 8,635,684.08
  5. Step 5: Solve for x
    x = 8,635,684.08/3,564.55
  6. Step 6: Final answer
    x = 2,422.66

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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.