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Finding the Fourth Proportional to 18,369.42, 27,554.10 and 8,503.30

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Solution

The fourth proportional to 18,369.42, 27,554.10 and 8,503.30 is: 12,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.42 : 27,554.10 = 8,503.30 : x
  2. Step 2: Convert to fraction form
    18,369.42/27,554.10 = 8,503.30/x
  3. Step 3: Cross multiply
    18,369.42x = 27,554.10 × 8,503.30
  4. Step 4: Simplify right side
    18,369.42x = 234,300,778.53
  5. Step 5: Solve for x
    x = 234,300,778.53/18,369.42
  6. Step 6: Final answer
    x = 12,754.94

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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.