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Finding the Fourth Proportional to 2,992.75, 4,485.38 and 1,602.64

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Solution

The fourth proportional to 2,992.75, 4,485.38 and 1,602.64 is: 2,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.75 : 4,485.38 = 1,602.64 : x
  2. Step 2: Convert to fraction form
    2,992.75/4,485.38 = 1,602.64/x
  3. Step 3: Cross multiply
    2,992.75x = 4,485.38 × 1,602.64
  4. Step 4: Simplify right side
    2,992.75x = 7,188,441.39
  5. Step 5: Solve for x
    x = 7,188,441.39/2,992.75
  6. Step 6: Final answer
    x = 2,401.95

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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.