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Finding the Fourth Proportional to 18,618.46, 27,932.90 and 7,532.94

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Solution

The fourth proportional to 18,618.46, 27,932.90 and 7,532.94 is: 11,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.46 : 27,932.90 = 7,532.94 : x
  2. Step 2: Convert to fraction form
    18,618.46/27,932.90 = 7,532.94/x
  3. Step 3: Cross multiply
    18,618.46x = 27,932.90 × 7,532.94
  4. Step 4: Simplify right side
    18,618.46x = 210,416,859.73
  5. Step 5: Solve for x
    x = 210,416,859.73/18,618.46
  6. Step 6: Final answer
    x = 11,301.52

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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.