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Finding the Fourth Proportional to 7,663.92, 11,486.26 and 3,276.22

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Solution

The fourth proportional to 7,663.92, 11,486.26 and 3,276.22 is: 4,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663.92 : 11,486.26 = 3,276.22 : x
  2. Step 2: Convert to fraction form
    7,663.92/11,486.26 = 3,276.22/x
  3. Step 3: Cross multiply
    7,663.92x = 11,486.26 × 3,276.22
  4. Step 4: Simplify right side
    7,663.92x = 37,631,440.92
  5. Step 5: Solve for x
    x = 37,631,440.92/7,663.92
  6. Step 6: Final answer
    x = 4,910.21

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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.