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Finding the Fourth Proportional to 21,998.87, 32,998.26 and 6,203.87

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Solution

The fourth proportional to 21,998.87, 32,998.26 and 6,203.87 is: 9,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.87 : 32,998.26 = 6,203.87 : x
  2. Step 2: Convert to fraction form
    21,998.87/32,998.26 = 6,203.87/x
  3. Step 3: Cross multiply
    21,998.87x = 32,998.26 × 6,203.87
  4. Step 4: Simplify right side
    21,998.87x = 204,716,787.03
  5. Step 5: Solve for x
    x = 204,716,787.03/21,998.87
  6. Step 6: Final answer
    x = 9,305.79

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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.