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Finding the Fourth Proportional to 13,523.76, 20,270.52 and 9,635.76

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Solution

The fourth proportional to 13,523.76, 20,270.52 and 9,635.76 is: 14,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.76 : 20,270.52 = 9,635.76 : x
  2. Step 2: Convert to fraction form
    13,523.76/20,270.52 = 9,635.76/x
  3. Step 3: Cross multiply
    13,523.76x = 20,270.52 × 9,635.76
  4. Step 4: Simplify right side
    13,523.76x = 195,321,865.80
  5. Step 5: Solve for x
    x = 195,321,865.80/13,523.76
  6. Step 6: Final answer
    x = 14,442.87

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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.