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Finding the Fourth Proportional to 3,593.56, 5,391.06 and 1,128.76

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Solution

The fourth proportional to 3,593.56, 5,391.06 and 1,128.76 is: 1,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.56 : 5,391.06 = 1,128.76 : x
  2. Step 2: Convert to fraction form
    3,593.56/5,391.06 = 1,128.76/x
  3. Step 3: Cross multiply
    3,593.56x = 5,391.06 × 1,128.76
  4. Step 4: Simplify right side
    3,593.56x = 6,085,212.89
  5. Step 5: Solve for x
    x = 6,085,212.89/3,593.56
  6. Step 6: Final answer
    x = 1,693.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.