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Finding the Fourth Proportional to 16,591.82, 22,919.09 and 15,410.84

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Solution

The fourth proportional to 16,591.82, 22,919.09 and 15,410.84 is: 21,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,591.82 : 22,919.09 = 15,410.84 : x
  2. Step 2: Convert to fraction form
    16,591.82/22,919.09 = 15,410.84/x
  3. Step 3: Cross multiply
    16,591.82x = 22,919.09 × 15,410.84
  4. Step 4: Simplify right side
    16,591.82x = 353,202,237.29
  5. Step 5: Solve for x
    x = 353,202,237.29/16,591.82
  6. Step 6: Final answer
    x = 21,287.74

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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.