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Finding the Fourth Proportional to 6,243.88, 8,616.90 and 3,449.32

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Solution

The fourth proportional to 6,243.88, 8,616.90 and 3,449.32 is: 4,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.88 : 8,616.90 = 3,449.32 : x
  2. Step 2: Convert to fraction form
    6,243.88/8,616.90 = 3,449.32/x
  3. Step 3: Cross multiply
    6,243.88x = 8,616.90 × 3,449.32
  4. Step 4: Simplify right side
    6,243.88x = 29,722,445.51
  5. Step 5: Solve for x
    x = 29,722,445.51/6,243.88
  6. Step 6: Final answer
    x = 4,760.25

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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.