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Finding the Fourth Proportional to 16,879.49, 25,286.99 and 9,461.51

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Solution

The fourth proportional to 16,879.49, 25,286.99 and 9,461.51 is: 14,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.49 : 25,286.99 = 9,461.51 : x
  2. Step 2: Convert to fraction form
    16,879.49/25,286.99 = 9,461.51/x
  3. Step 3: Cross multiply
    16,879.49x = 25,286.99 × 9,461.51
  4. Step 4: Simplify right side
    16,879.49x = 239,253,029.84
  5. Step 5: Solve for x
    x = 239,253,029.84/16,879.49
  6. Step 6: Final answer
    x = 14,174.19

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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.