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Finding the Fourth Proportional to 3,015.56, 4,523.64 and 935.48

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Solution

The fourth proportional to 3,015.56, 4,523.64 and 935.48 is: 1,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.56 : 4,523.64 = 935.48 : x
  2. Step 2: Convert to fraction form
    3,015.56/4,523.64 = 935.48/x
  3. Step 3: Cross multiply
    3,015.56x = 4,523.64 × 935.48
  4. Step 4: Simplify right side
    3,015.56x = 4,231,774.75
  5. Step 5: Solve for x
    x = 4,231,774.75/3,015.56
  6. Step 6: Final answer
    x = 1,403.31

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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.