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Finding the Fourth Proportional to 16,901.92, 25,353.22 and 5,215.14

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Solution

The fourth proportional to 16,901.92, 25,353.22 and 5,215.14 is: 7,822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,901.92 : 25,353.22 = 5,215.14 : x
  2. Step 2: Convert to fraction form
    16,901.92/25,353.22 = 5,215.14/x
  3. Step 3: Cross multiply
    16,901.92x = 25,353.22 × 5,215.14
  4. Step 4: Simplify right side
    16,901.92x = 132,220,591.75
  5. Step 5: Solve for x
    x = 132,220,591.75/16,901.92
  6. Step 6: Final answer
    x = 7,822.81

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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.