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Finding the Fourth Proportional to 16,825.88, 25,238.84 and 4,979.84

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Solution

The fourth proportional to 16,825.88, 25,238.84 and 4,979.84 is: 7,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,825.88 : 25,238.84 = 4,979.84 : x
  2. Step 2: Convert to fraction form
    16,825.88/25,238.84 = 4,979.84/x
  3. Step 3: Cross multiply
    16,825.88x = 25,238.84 × 4,979.84
  4. Step 4: Simplify right side
    16,825.88x = 125,685,384.99
  5. Step 5: Solve for x
    x = 125,685,384.99/16,825.88
  6. Step 6: Final answer
    x = 7,469.77

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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.