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Finding the Fourth Proportional to 11,116.52, 16,680.52 and 4,880.90

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Solution

The fourth proportional to 11,116.52, 16,680.52 and 4,880.90 is: 7,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.52 : 16,680.52 = 4,880.90 : x
  2. Step 2: Convert to fraction form
    11,116.52/16,680.52 = 4,880.90/x
  3. Step 3: Cross multiply
    11,116.52x = 16,680.52 × 4,880.90
  4. Step 4: Simplify right side
    11,116.52x = 81,415,997.87
  5. Step 5: Solve for x
    x = 81,415,997.87/11,116.52
  6. Step 6: Final answer
    x = 7,323.88

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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.