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Finding the Fourth Proportional to 15,992.46, 23,990.88 and 5,459.64

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Solution

The fourth proportional to 15,992.46, 23,990.88 and 5,459.64 is: 8,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.46 : 23,990.88 = 5,459.64 : x
  2. Step 2: Convert to fraction form
    15,992.46/23,990.88 = 5,459.64/x
  3. Step 3: Cross multiply
    15,992.46x = 23,990.88 × 5,459.64
  4. Step 4: Simplify right side
    15,992.46x = 130,981,568.08
  5. Step 5: Solve for x
    x = 130,981,568.08/15,992.46
  6. Step 6: Final answer
    x = 8,190.21

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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.