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Finding the Fourth Proportional to 11,783.92, 16,261.71 and 6,749.05

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Solution

The fourth proportional to 11,783.92, 16,261.71 and 6,749.05 is: 9,313.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.92 : 16,261.71 = 6,749.05 : x
  2. Step 2: Convert to fraction form
    11,783.92/16,261.71 = 6,749.05/x
  3. Step 3: Cross multiply
    11,783.92x = 16,261.71 × 6,749.05
  4. Step 4: Simplify right side
    11,783.92x = 109,751,093.88
  5. Step 5: Solve for x
    x = 109,751,093.88/11,783.92
  6. Step 6: Final answer
    x = 9,313.63

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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.