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Finding the Fourth Proportional to 18,478.73, 27,692.58 and 16,007.42

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Solution

The fourth proportional to 18,478.73, 27,692.58 and 16,007.42 is: 23,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.73 : 27,692.58 = 16,007.42 : x
  2. Step 2: Convert to fraction form
    18,478.73/27,692.58 = 16,007.42/x
  3. Step 3: Cross multiply
    18,478.73x = 27,692.58 × 16,007.42
  4. Step 4: Simplify right side
    18,478.73x = 443,286,888.20
  5. Step 5: Solve for x
    x = 443,286,888.20/18,478.73
  6. Step 6: Final answer
    x = 23,989.03

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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.