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Finding the Fourth Proportional to 18,549.80, 27,747.90 and 16,706.60

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Solution

The fourth proportional to 18,549.80, 27,747.90 and 16,706.60 is: 24,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.80 : 27,747.90 = 16,706.60 : x
  2. Step 2: Convert to fraction form
    18,549.80/27,747.90 = 16,706.60/x
  3. Step 3: Cross multiply
    18,549.80x = 27,747.90 × 16,706.60
  4. Step 4: Simplify right side
    18,549.80x = 463,573,066.14
  5. Step 5: Solve for x
    x = 463,573,066.14/18,549.80
  6. Step 6: Final answer
    x = 24,990.73

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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.