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Finding the Fourth Proportional to 21,995.80, 32,993.73 and 5,355.73

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Solution

The fourth proportional to 21,995.80, 32,993.73 and 5,355.73 is: 8,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.80 : 32,993.73 = 5,355.73 : x
  2. Step 2: Convert to fraction form
    21,995.80/32,993.73 = 5,355.73/x
  3. Step 3: Cross multiply
    21,995.80x = 32,993.73 × 5,355.73
  4. Step 4: Simplify right side
    21,995.80x = 176,705,509.57
  5. Step 5: Solve for x
    x = 176,705,509.57/21,995.80
  6. Step 6: Final answer
    x = 8,033.60

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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.