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Finding the Fourth Proportional to 18,175.20, 27,262.80 and 16,562.40

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Solution

The fourth proportional to 18,175.20, 27,262.80 and 16,562.40 is: 24,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.20 : 27,262.80 = 16,562.40 : x
  2. Step 2: Convert to fraction form
    18,175.20/27,262.80 = 16,562.40/x
  3. Step 3: Cross multiply
    18,175.20x = 27,262.80 × 16,562.40
  4. Step 4: Simplify right side
    18,175.20x = 451,537,398.72
  5. Step 5: Solve for x
    x = 451,537,398.72/18,175.20
  6. Step 6: Final answer
    x = 24,843.60

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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.