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Finding the Fourth Proportional to 2,374.60, 3,557.68 and 1,449.68

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Solution

The fourth proportional to 2,374.60, 3,557.68 and 1,449.68 is: 2,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.60 : 3,557.68 = 1,449.68 : x
  2. Step 2: Convert to fraction form
    2,374.60/3,557.68 = 1,449.68/x
  3. Step 3: Cross multiply
    2,374.60x = 3,557.68 × 1,449.68
  4. Step 4: Simplify right side
    2,374.60x = 5,157,497.54
  5. Step 5: Solve for x
    x = 5,157,497.54/2,374.60
  6. Step 6: Final answer
    x = 2,171.94

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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.