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Finding the Fourth Proportional to 6,169.76, 8,512.80 and 3,517.28

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Solution

The fourth proportional to 6,169.76, 8,512.80 and 3,517.28 is: 4,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,169.76 : 8,512.80 = 3,517.28 : x
  2. Step 2: Convert to fraction form
    6,169.76/8,512.80 = 3,517.28/x
  3. Step 3: Cross multiply
    6,169.76x = 8,512.80 × 3,517.28
  4. Step 4: Simplify right side
    6,169.76x = 29,941,901.18
  5. Step 5: Solve for x
    x = 29,941,901.18/6,169.76
  6. Step 6: Final answer
    x = 4,853.01

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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.