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Finding the Fourth Proportional to 3,924.70, 5,883.39 and 1,325.82

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Solution

The fourth proportional to 3,924.70, 5,883.39 and 1,325.82 is: 1,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.70 : 5,883.39 = 1,325.82 : x
  2. Step 2: Convert to fraction form
    3,924.70/5,883.39 = 1,325.82/x
  3. Step 3: Cross multiply
    3,924.70x = 5,883.39 × 1,325.82
  4. Step 4: Simplify right side
    3,924.70x = 7,800,316.13
  5. Step 5: Solve for x
    x = 7,800,316.13/3,924.70
  6. Step 6: Final answer
    x = 1,987.49

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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.