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Finding the Fourth Proportional to 6,653.92, 9,181.68 and 3,858.88

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Solution

The fourth proportional to 6,653.92, 9,181.68 and 3,858.88 is: 5,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.92 : 9,181.68 = 3,858.88 : x
  2. Step 2: Convert to fraction form
    6,653.92/9,181.68 = 3,858.88/x
  3. Step 3: Cross multiply
    6,653.92x = 9,181.68 × 3,858.88
  4. Step 4: Simplify right side
    6,653.92x = 35,431,001.32
  5. Step 5: Solve for x
    x = 35,431,001.32/6,653.92
  6. Step 6: Final answer
    x = 5,324.83

Related Problems

Find fourth proportional to 3,326.96, 4,590.84 and 1,929.44
Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.