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Finding the Fourth Proportional to 7,993.71, 11,983.70 and 4,480.84

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Solution

The fourth proportional to 7,993.71, 11,983.70 and 4,480.84 is: 6,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.71 : 11,983.70 = 4,480.84 : x
  2. Step 2: Convert to fraction form
    7,993.71/11,983.70 = 4,480.84/x
  3. Step 3: Cross multiply
    7,993.71x = 11,983.70 × 4,480.84
  4. Step 4: Simplify right side
    7,993.71x = 53,697,076.99
  5. Step 5: Solve for x
    x = 53,697,076.99/7,993.71
  6. Step 6: Final answer
    x = 6,717.41

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Similar ratio
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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.