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Finding the Fourth Proportional to 3,596.40, 5,392.40 and 1,402.60

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Solution

The fourth proportional to 3,596.40, 5,392.40 and 1,402.60 is: 2,103.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.40 : 5,392.40 = 1,402.60 : x
  2. Step 2: Convert to fraction form
    3,596.40/5,392.40 = 1,402.60/x
  3. Step 3: Cross multiply
    3,596.40x = 5,392.40 × 1,402.60
  4. Step 4: Simplify right side
    3,596.40x = 7,563,380.24
  5. Step 5: Solve for x
    x = 7,563,380.24/3,596.40
  6. Step 6: Final answer
    x = 2,103.04

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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.