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Finding the Fourth Proportional to 18,429.99, 27,644.03 and 5,949.78

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Solution

The fourth proportional to 18,429.99, 27,644.03 and 5,949.78 is: 8,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.99 : 27,644.03 = 5,949.78 : x
  2. Step 2: Convert to fraction form
    18,429.99/27,644.03 = 5,949.78/x
  3. Step 3: Cross multiply
    18,429.99x = 27,644.03 × 5,949.78
  4. Step 4: Simplify right side
    18,429.99x = 164,475,867.06
  5. Step 5: Solve for x
    x = 164,475,867.06/18,429.99
  6. Step 6: Final answer
    x = 8,924.36

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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.