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Finding the Fourth Proportional to 7,067.84, 9,749.30 and 5,081.09

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Solution

The fourth proportional to 7,067.84, 9,749.30 and 5,081.09 is: 7,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.84 : 9,749.30 = 5,081.09 : x
  2. Step 2: Convert to fraction form
    7,067.84/9,749.30 = 5,081.09/x
  3. Step 3: Cross multiply
    7,067.84x = 9,749.30 × 5,081.09
  4. Step 4: Simplify right side
    7,067.84x = 49,536,996.59
  5. Step 5: Solve for x
    x = 49,536,996.59/7,067.84
  6. Step 6: Final answer
    x = 7,008.79

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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.