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Finding the Fourth Proportional to 3,743.60, 5,611.60 and 2,357.92

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Solution

The fourth proportional to 3,743.60, 5,611.60 and 2,357.92 is: 3,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.60 : 5,611.60 = 2,357.92 : x
  2. Step 2: Convert to fraction form
    3,743.60/5,611.60 = 2,357.92/x
  3. Step 3: Cross multiply
    3,743.60x = 5,611.60 × 2,357.92
  4. Step 4: Simplify right side
    3,743.60x = 13,231,703.87
  5. Step 5: Solve for x
    x = 13,231,703.87/3,743.60
  6. Step 6: Final answer
    x = 3,534.49

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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.