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Finding the Fourth Proportional to 5,711.93, 7,883.18 and 3,194.18

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Solution

The fourth proportional to 5,711.93, 7,883.18 and 3,194.18 is: 4,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.93 : 7,883.18 = 3,194.18 : x
  2. Step 2: Convert to fraction form
    5,711.93/7,883.18 = 3,194.18/x
  3. Step 3: Cross multiply
    5,711.93x = 7,883.18 × 3,194.18
  4. Step 4: Simplify right side
    5,711.93x = 25,180,240.51
  5. Step 5: Solve for x
    x = 25,180,240.51/5,711.93
  6. Step 6: Final answer
    x = 4,408.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.