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Finding the Fourth Proportional to 19,843.01, 27,384.02 and 10,890.99

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Solution

The fourth proportional to 19,843.01, 27,384.02 and 10,890.99 is: 15,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.01 : 27,384.02 = 10,890.99 : x
  2. Step 2: Convert to fraction form
    19,843.01/27,384.02 = 10,890.99/x
  3. Step 3: Cross multiply
    19,843.01x = 27,384.02 × 10,890.99
  4. Step 4: Simplify right side
    19,843.01x = 298,239,033.52
  5. Step 5: Solve for x
    x = 298,239,033.52/19,843.01
  6. Step 6: Final answer
    x = 15,029.93

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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.