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Finding the Fourth Proportional to 8,169.45, 11,274 and 4,632.60

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Solution

The fourth proportional to 8,169.45, 11,274 and 4,632.60 is: 6,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.45 : 11,274 = 4,632.60 : x
  2. Step 2: Convert to fraction form
    8,169.45/11,274 = 4,632.60/x
  3. Step 3: Cross multiply
    8,169.45x = 11,274 × 4,632.60
  4. Step 4: Simplify right side
    8,169.45x = 52,227,932.40
  5. Step 5: Solve for x
    x = 52,227,932.40/8,169.45
  6. Step 6: Final answer
    x = 6,393.08

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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.