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Finding the Fourth Proportional to 19,993.77, 27,591.42 and 11,041.29

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Solution

The fourth proportional to 19,993.77, 27,591.42 and 11,041.29 is: 15,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.77 : 27,591.42 = 11,041.29 : x
  2. Step 2: Convert to fraction form
    19,993.77/27,591.42 = 11,041.29/x
  3. Step 3: Cross multiply
    19,993.77x = 27,591.42 × 11,041.29
  4. Step 4: Simplify right side
    19,993.77x = 304,644,869.73
  5. Step 5: Solve for x
    x = 304,644,869.73/19,993.77
  6. Step 6: Final answer
    x = 15,236.99

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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.