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Finding the Fourth Proportional to 11,046.50, 15,244.20 and 6,078.50

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Solution

The fourth proportional to 11,046.50, 15,244.20 and 6,078.50 is: 8,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,046.50 : 15,244.20 = 6,078.50 : x
  2. Step 2: Convert to fraction form
    11,046.50/15,244.20 = 6,078.50/x
  3. Step 3: Cross multiply
    11,046.50x = 15,244.20 × 6,078.50
  4. Step 4: Simplify right side
    11,046.50x = 92,661,869.70
  5. Step 5: Solve for x
    x = 92,661,869.70/11,046.50
  6. Step 6: Final answer
    x = 8,388.35

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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.