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Finding the Fourth Proportional to 18,354.20, 27,531.30 and 18,062.60

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Solution

The fourth proportional to 18,354.20, 27,531.30 and 18,062.60 is: 27,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.20 : 27,531.30 = 18,062.60 : x
  2. Step 2: Convert to fraction form
    18,354.20/27,531.30 = 18,062.60/x
  3. Step 3: Cross multiply
    18,354.20x = 27,531.30 × 18,062.60
  4. Step 4: Simplify right side
    18,354.20x = 497,286,859.38
  5. Step 5: Solve for x
    x = 497,286,859.38/18,354.20
  6. Step 6: Final answer
    x = 27,093.90

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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.