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Finding the Fourth Proportional to 8,888, 12,265.44 and 5,162

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Solution

The fourth proportional to 8,888, 12,265.44 and 5,162 is: 7,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888 : 12,265.44 = 5,162 : x
  2. Step 2: Convert to fraction form
    8,888/12,265.44 = 5,162/x
  3. Step 3: Cross multiply
    8,888x = 12,265.44 × 5,162
  4. Step 4: Simplify right side
    8,888x = 63,314,201.28
  5. Step 5: Solve for x
    x = 63,314,201.28/8,888
  6. Step 6: Final answer
    x = 7,123.56

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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.