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Finding the Fourth Proportional to 18,404.80, 27,607.20 and 16,290.70

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Solution

The fourth proportional to 18,404.80, 27,607.20 and 16,290.70 is: 24,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.80 : 27,607.20 = 16,290.70 : x
  2. Step 2: Convert to fraction form
    18,404.80/27,607.20 = 16,290.70/x
  3. Step 3: Cross multiply
    18,404.80x = 27,607.20 × 16,290.70
  4. Step 4: Simplify right side
    18,404.80x = 449,740,613.04
  5. Step 5: Solve for x
    x = 449,740,613.04/18,404.80
  6. Step 6: Final answer
    x = 24,436.05

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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.