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Finding the Fourth Proportional to 7,992.17, 11,993.66 and 2,798.09

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Solution

The fourth proportional to 7,992.17, 11,993.66 and 2,798.09 is: 4,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.17 : 11,993.66 = 2,798.09 : x
  2. Step 2: Convert to fraction form
    7,992.17/11,993.66 = 2,798.09/x
  3. Step 3: Cross multiply
    7,992.17x = 11,993.66 × 2,798.09
  4. Step 4: Simplify right side
    7,992.17x = 33,559,340.11
  5. Step 5: Solve for x
    x = 33,559,340.11/7,992.17
  6. Step 6: Final answer
    x = 4,199.03

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Double scale
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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.