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Finding the Fourth Proportional to 3,772.63, 5,659.20 and 999.27

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Solution

The fourth proportional to 3,772.63, 5,659.20 and 999.27 is: 1,498.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.63 : 5,659.20 = 999.27 : x
  2. Step 2: Convert to fraction form
    3,772.63/5,659.20 = 999.27/x
  3. Step 3: Cross multiply
    3,772.63x = 5,659.20 × 999.27
  4. Step 4: Simplify right side
    3,772.63x = 5,655,040.49
  5. Step 5: Solve for x
    x = 5,655,040.49/3,772.63
  6. Step 6: Final answer
    x = 1,498.97

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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.