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Finding the Fourth Proportional to 11,992.83, 17,993.22 and 5,328.40

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Solution

The fourth proportional to 11,992.83, 17,993.22 and 5,328.40 is: 7,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.83 : 17,993.22 = 5,328.40 : x
  2. Step 2: Convert to fraction form
    11,992.83/17,993.22 = 5,328.40/x
  3. Step 3: Cross multiply
    11,992.83x = 17,993.22 × 5,328.40
  4. Step 4: Simplify right side
    11,992.83x = 95,875,048.45
  5. Step 5: Solve for x
    x = 95,875,048.45/11,992.83
  6. Step 6: Final answer
    x = 7,994.37

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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.