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Finding the Fourth Proportional to 25,473.92, 38,213.04 and 7,940.16

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Solution

The fourth proportional to 25,473.92, 38,213.04 and 7,940.16 is: 11,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,473.92 : 38,213.04 = 7,940.16 : x
  2. Step 2: Convert to fraction form
    25,473.92/38,213.04 = 7,940.16/x
  3. Step 3: Cross multiply
    25,473.92x = 38,213.04 × 7,940.16
  4. Step 4: Simplify right side
    25,473.92x = 303,417,651.69
  5. Step 5: Solve for x
    x = 303,417,651.69/25,473.92
  6. Step 6: Final answer
    x = 11,910.91

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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.