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Finding the Fourth Proportional to 4,057.83, 6,086.73 and 979.83

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Solution

The fourth proportional to 4,057.83, 6,086.73 and 979.83 is: 1,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,057.83 : 6,086.73 = 979.83 : x
  2. Step 2: Convert to fraction form
    4,057.83/6,086.73 = 979.83/x
  3. Step 3: Cross multiply
    4,057.83x = 6,086.73 × 979.83
  4. Step 4: Simplify right side
    4,057.83x = 5,963,960.66
  5. Step 5: Solve for x
    x = 5,963,960.66/4,057.83
  6. Step 6: Final answer
    x = 1,469.74

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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.