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Finding the Fourth Proportional to 3,388.72, 5,083.08 and 1,196.92

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Solution

The fourth proportional to 3,388.72, 5,083.08 and 1,196.92 is: 1,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.72 : 5,083.08 = 1,196.92 : x
  2. Step 2: Convert to fraction form
    3,388.72/5,083.08 = 1,196.92/x
  3. Step 3: Cross multiply
    3,388.72x = 5,083.08 × 1,196.92
  4. Step 4: Simplify right side
    3,388.72x = 6,084,040.11
  5. Step 5: Solve for x
    x = 6,084,040.11/3,388.72
  6. Step 6: Final answer
    x = 1,795.38

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Double scale
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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.