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Finding the Fourth Proportional to 8,986.17, 13,481.70 and 5,093.31

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Solution

The fourth proportional to 8,986.17, 13,481.70 and 5,093.31 is: 7,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.17 : 13,481.70 = 5,093.31 : x
  2. Step 2: Convert to fraction form
    8,986.17/13,481.70 = 5,093.31/x
  3. Step 3: Cross multiply
    8,986.17x = 13,481.70 × 5,093.31
  4. Step 4: Simplify right side
    8,986.17x = 68,666,477.43
  5. Step 5: Solve for x
    x = 68,666,477.43/8,986.17
  6. Step 6: Final answer
    x = 7,641.35

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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.