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Finding the Fourth Proportional to 30,383.31, 45,571.32 and 8,194.98

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Solution

The fourth proportional to 30,383.31, 45,571.32 and 8,194.98 is: 12,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.31 : 45,571.32 = 8,194.98 : x
  2. Step 2: Convert to fraction form
    30,383.31/45,571.32 = 8,194.98/x
  3. Step 3: Cross multiply
    30,383.31x = 45,571.32 × 8,194.98
  4. Step 4: Simplify right side
    30,383.31x = 373,456,055.97
  5. Step 5: Solve for x
    x = 373,456,055.97/30,383.31
  6. Step 6: Final answer
    x = 12,291.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.