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Finding the Fourth Proportional to 18,331.97, 27,498.02 and 13,365.99

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Solution

The fourth proportional to 18,331.97, 27,498.02 and 13,365.99 is: 20,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.97 : 27,498.02 = 13,365.99 : x
  2. Step 2: Convert to fraction form
    18,331.97/27,498.02 = 13,365.99/x
  3. Step 3: Cross multiply
    18,331.97x = 27,498.02 × 13,365.99
  4. Step 4: Simplify right side
    18,331.97x = 367,538,193.51
  5. Step 5: Solve for x
    x = 367,538,193.51/18,331.97
  6. Step 6: Final answer
    x = 20,049.03

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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.