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Finding the Fourth Proportional to 5,393.28, 7,443.04 and 3,035.28

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Solution

The fourth proportional to 5,393.28, 7,443.04 and 3,035.28 is: 4,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.28 : 7,443.04 = 3,035.28 : x
  2. Step 2: Convert to fraction form
    5,393.28/7,443.04 = 3,035.28/x
  3. Step 3: Cross multiply
    5,393.28x = 7,443.04 × 3,035.28
  4. Step 4: Simplify right side
    5,393.28x = 22,591,710.45
  5. Step 5: Solve for x
    x = 22,591,710.45/5,393.28
  6. Step 6: Final answer
    x = 4,188.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.