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Finding the Fourth Proportional to 5,049.52, 6,968.04 and 2,811.28

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Solution

The fourth proportional to 5,049.52, 6,968.04 and 2,811.28 is: 3,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.52 : 6,968.04 = 2,811.28 : x
  2. Step 2: Convert to fraction form
    5,049.52/6,968.04 = 2,811.28/x
  3. Step 3: Cross multiply
    5,049.52x = 6,968.04 × 2,811.28
  4. Step 4: Simplify right side
    5,049.52x = 19,589,111.49
  5. Step 5: Solve for x
    x = 19,589,111.49/5,049.52
  6. Step 6: Final answer
    x = 3,879.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.