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Finding the Fourth Proportional to 22,489.32, 33,728.09 and 6,690.09

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Solution

The fourth proportional to 22,489.32, 33,728.09 and 6,690.09 is: 10,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.32 : 33,728.09 = 6,690.09 : x
  2. Step 2: Convert to fraction form
    22,489.32/33,728.09 = 6,690.09/x
  3. Step 3: Cross multiply
    22,489.32x = 33,728.09 × 6,690.09
  4. Step 4: Simplify right side
    22,489.32x = 225,643,957.63
  5. Step 5: Solve for x
    x = 225,643,957.63/22,489.32
  6. Step 6: Final answer
    x = 10,033.38

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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.