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Finding the Fourth Proportional to 7,915.43, 11,873.69 and 3,754.73

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Solution

The fourth proportional to 7,915.43, 11,873.69 and 3,754.73 is: 5,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.43 : 11,873.69 = 3,754.73 : x
  2. Step 2: Convert to fraction form
    7,915.43/11,873.69 = 3,754.73/x
  3. Step 3: Cross multiply
    7,915.43x = 11,873.69 × 3,754.73
  4. Step 4: Simplify right side
    7,915.43x = 44,582,500.05
  5. Step 5: Solve for x
    x = 44,582,500.05/7,915.43
  6. Step 6: Final answer
    x = 5,632.35

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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.