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Finding the Fourth Proportional to 2,999.55, 4,502.52 and 1,961.64

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Solution

The fourth proportional to 2,999.55, 4,502.52 and 1,961.64 is: 2,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.55 : 4,502.52 = 1,961.64 : x
  2. Step 2: Convert to fraction form
    2,999.55/4,502.52 = 1,961.64/x
  3. Step 3: Cross multiply
    2,999.55x = 4,502.52 × 1,961.64
  4. Step 4: Simplify right side
    2,999.55x = 8,832,323.33
  5. Step 5: Solve for x
    x = 8,832,323.33/2,999.55
  6. Step 6: Final answer
    x = 2,944.55

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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.