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Finding the Fourth Proportional to 6,249.48, 8,623.72 and 3,858.76

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Solution

The fourth proportional to 6,249.48, 8,623.72 and 3,858.76 is: 5,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249.48 : 8,623.72 = 3,858.76 : x
  2. Step 2: Convert to fraction form
    6,249.48/8,623.72 = 3,858.76/x
  3. Step 3: Cross multiply
    6,249.48x = 8,623.72 × 3,858.76
  4. Step 4: Simplify right side
    6,249.48x = 33,276,865.79
  5. Step 5: Solve for x
    x = 33,276,865.79/6,249.48
  6. Step 6: Final answer
    x = 5,324.74

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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.