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Finding the Fourth Proportional to 16,261.88, 22,441.39 and 8,809.88

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Solution

The fourth proportional to 16,261.88, 22,441.39 and 8,809.88 is: 12,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,261.88 : 22,441.39 = 8,809.88 : x
  2. Step 2: Convert to fraction form
    16,261.88/22,441.39 = 8,809.88/x
  3. Step 3: Cross multiply
    16,261.88x = 22,441.39 × 8,809.88
  4. Step 4: Simplify right side
    16,261.88x = 197,705,818.70
  5. Step 5: Solve for x
    x = 197,705,818.70/16,261.88
  6. Step 6: Final answer
    x = 12,157.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.