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Finding the Fourth Proportional to 38,527.60, 57,791.40 and 12,234.40

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Solution

The fourth proportional to 38,527.60, 57,791.40 and 12,234.40 is: 18,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,527.60 : 57,791.40 = 12,234.40 : x
  2. Step 2: Convert to fraction form
    38,527.60/57,791.40 = 12,234.40/x
  3. Step 3: Cross multiply
    38,527.60x = 57,791.40 × 12,234.40
  4. Step 4: Simplify right side
    38,527.60x = 707,043,104.16
  5. Step 5: Solve for x
    x = 707,043,104.16/38,527.60
  6. Step 6: Final answer
    x = 18,351.60

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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.