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Finding the Fourth Proportional to 18,383.61, 27,367.51 and 18,274.26

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Solution

The fourth proportional to 18,383.61, 27,367.51 and 18,274.26 is: 27,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.61 : 27,367.51 = 18,274.26 : x
  2. Step 2: Convert to fraction form
    18,383.61/27,367.51 = 18,274.26/x
  3. Step 3: Cross multiply
    18,383.61x = 27,367.51 × 18,274.26
  4. Step 4: Simplify right side
    18,383.61x = 500,120,993.29
  5. Step 5: Solve for x
    x = 500,120,993.29/18,383.61
  6. Step 6: Final answer
    x = 27,204.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.