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Finding the Fourth Proportional to 7,995.41, 11,992.71 and 2,800.88

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Solution

The fourth proportional to 7,995.41, 11,992.71 and 2,800.88 is: 4,201.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.41 : 11,992.71 = 2,800.88 : x
  2. Step 2: Convert to fraction form
    7,995.41/11,992.71 = 2,800.88/x
  3. Step 3: Cross multiply
    7,995.41x = 11,992.71 × 2,800.88
  4. Step 4: Simplify right side
    7,995.41x = 33,590,141.58
  5. Step 5: Solve for x
    x = 33,590,141.58/7,995.41
  6. Step 6: Final answer
    x = 4,201.18

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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.