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Finding the Fourth Proportional to 16,362.28, 22,579.62 and 8,910.12

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Solution

The fourth proportional to 16,362.28, 22,579.62 and 8,910.12 is: 12,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,362.28 : 22,579.62 = 8,910.12 : x
  2. Step 2: Convert to fraction form
    16,362.28/22,579.62 = 8,910.12/x
  3. Step 3: Cross multiply
    16,362.28x = 22,579.62 × 8,910.12
  4. Step 4: Simplify right side
    16,362.28x = 201,187,123.75
  5. Step 5: Solve for x
    x = 201,187,123.75/16,362.28
  6. Step 6: Final answer
    x = 12,295.79

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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.