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Finding the Fourth Proportional to 5,491.05, 8,236.58 and 5,086.05

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Solution

The fourth proportional to 5,491.05, 8,236.58 and 5,086.05 is: 7,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.05 : 8,236.58 = 5,086.05 : x
  2. Step 2: Convert to fraction form
    5,491.05/8,236.58 = 5,086.05/x
  3. Step 3: Cross multiply
    5,491.05x = 8,236.58 × 5,086.05
  4. Step 4: Simplify right side
    5,491.05x = 41,891,632.28
  5. Step 5: Solve for x
    x = 41,891,632.28/5,491.05
  6. Step 6: Final answer
    x = 7,629.08

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Double scale
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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.