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Finding the Fourth Proportional to 18,523.97, 27,683.99 and 13,536.72

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Solution

The fourth proportional to 18,523.97, 27,683.99 and 13,536.72 is: 20,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.97 : 27,683.99 = 13,536.72 : x
  2. Step 2: Convert to fraction form
    18,523.97/27,683.99 = 13,536.72/x
  3. Step 3: Cross multiply
    18,523.97x = 27,683.99 × 13,536.72
  4. Step 4: Simplify right side
    18,523.97x = 374,750,353.43
  5. Step 5: Solve for x
    x = 374,750,353.43/18,523.97
  6. Step 6: Final answer
    x = 20,230.57

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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.