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Finding the Fourth Proportional to 4,969.44, 6,859.80 and 3,081.42

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Solution

The fourth proportional to 4,969.44, 6,859.80 and 3,081.42 is: 4,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.44 : 6,859.80 = 3,081.42 : x
  2. Step 2: Convert to fraction form
    4,969.44/6,859.80 = 3,081.42/x
  3. Step 3: Cross multiply
    4,969.44x = 6,859.80 × 3,081.42
  4. Step 4: Simplify right side
    4,969.44x = 21,137,924.92
  5. Step 5: Solve for x
    x = 21,137,924.92/4,969.44
  6. Step 6: Final answer
    x = 4,253.58

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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.