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Finding the Fourth Proportional to 8,755.52, 12,076.60 and 5,216

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Solution

The fourth proportional to 8,755.52, 12,076.60 and 5,216 is: 7,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.52 : 12,076.60 = 5,216 : x
  2. Step 2: Convert to fraction form
    8,755.52/12,076.60 = 5,216/x
  3. Step 3: Cross multiply
    8,755.52x = 12,076.60 × 5,216
  4. Step 4: Simplify right side
    8,755.52x = 62,991,545.60
  5. Step 5: Solve for x
    x = 62,991,545.60/8,755.52
  6. Step 6: Final answer
    x = 7,194.50

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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.