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Finding the Fourth Proportional to 16,581.92, 22,882.60 and 9,028.40

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Solution

The fourth proportional to 16,581.92, 22,882.60 and 9,028.40 is: 12,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,581.92 : 22,882.60 = 9,028.40 : x
  2. Step 2: Convert to fraction form
    16,581.92/22,882.60 = 9,028.40/x
  3. Step 3: Cross multiply
    16,581.92x = 22,882.60 × 9,028.40
  4. Step 4: Simplify right side
    16,581.92x = 206,593,265.84
  5. Step 5: Solve for x
    x = 206,593,265.84/16,581.92
  6. Step 6: Final answer
    x = 12,458.95

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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.