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Finding the Fourth Proportional to 23,284.80, 34,927.20 and 7,489.80

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Solution

The fourth proportional to 23,284.80, 34,927.20 and 7,489.80 is: 11,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,284.80 : 34,927.20 = 7,489.80 : x
  2. Step 2: Convert to fraction form
    23,284.80/34,927.20 = 7,489.80/x
  3. Step 3: Cross multiply
    23,284.80x = 34,927.20 × 7,489.80
  4. Step 4: Simplify right side
    23,284.80x = 261,597,742.56
  5. Step 5: Solve for x
    x = 261,597,742.56/23,284.80
  6. Step 6: Final answer
    x = 11,234.70

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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.