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Finding the Fourth Proportional to 3,405.60, 5,097.60 and 2,433.60

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Solution

The fourth proportional to 3,405.60, 5,097.60 and 2,433.60 is: 3,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.60 : 5,097.60 = 2,433.60 : x
  2. Step 2: Convert to fraction form
    3,405.60/5,097.60 = 2,433.60/x
  3. Step 3: Cross multiply
    3,405.60x = 5,097.60 × 2,433.60
  4. Step 4: Simplify right side
    3,405.60x = 12,405,519.36
  5. Step 5: Solve for x
    x = 12,405,519.36/3,405.60
  6. Step 6: Final answer
    x = 3,642.68

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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.