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Finding the Fourth Proportional to 19,993.56, 29,995.20 and 6,852.12

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Solution

The fourth proportional to 19,993.56, 29,995.20 and 6,852.12 is: 10,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.56 : 29,995.20 = 6,852.12 : x
  2. Step 2: Convert to fraction form
    19,993.56/29,995.20 = 6,852.12/x
  3. Step 3: Cross multiply
    19,993.56x = 29,995.20 × 6,852.12
  4. Step 4: Simplify right side
    19,993.56x = 205,530,709.82
  5. Step 5: Solve for x
    x = 205,530,709.82/19,993.56
  6. Step 6: Final answer
    x = 10,279.85

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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.