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Finding the Fourth Proportional to 3,881.73, 5,816.79 and 3,152.73

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Solution

The fourth proportional to 3,881.73, 5,816.79 and 3,152.73 is: 4,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.73 : 5,816.79 = 3,152.73 : x
  2. Step 2: Convert to fraction form
    3,881.73/5,816.79 = 3,152.73/x
  3. Step 3: Cross multiply
    3,881.73x = 5,816.79 × 3,152.73
  4. Step 4: Simplify right side
    3,881.73x = 18,338,768.34
  5. Step 5: Solve for x
    x = 18,338,768.34/3,881.73
  6. Step 6: Final answer
    x = 4,724.38

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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.