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Finding the Fourth Proportional to 3,592.80, 5,389.92 and 1,645.56

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Solution

The fourth proportional to 3,592.80, 5,389.92 and 1,645.56 is: 2,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.80 : 5,389.92 = 1,645.56 : x
  2. Step 2: Convert to fraction form
    3,592.80/5,389.92 = 1,645.56/x
  3. Step 3: Cross multiply
    3,592.80x = 5,389.92 × 1,645.56
  4. Step 4: Simplify right side
    3,592.80x = 8,869,436.76
  5. Step 5: Solve for x
    x = 8,869,436.76/3,592.80
  6. Step 6: Final answer
    x = 2,468.67

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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.