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Finding the Fourth Proportional to 7,995.69, 11,995.31 and 2,449.47

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Solution

The fourth proportional to 7,995.69, 11,995.31 and 2,449.47 is: 3,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.69 : 11,995.31 = 2,449.47 : x
  2. Step 2: Convert to fraction form
    7,995.69/11,995.31 = 2,449.47/x
  3. Step 3: Cross multiply
    7,995.69x = 11,995.31 × 2,449.47
  4. Step 4: Simplify right side
    7,995.69x = 29,382,139.74
  5. Step 5: Solve for x
    x = 29,382,139.74/7,995.69
  6. Step 6: Final answer
    x = 3,674.75

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1.5x scale

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.