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Finding the Fourth Proportional to 8,235.52, 12,349.54 and 3,553.31

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Solution

The fourth proportional to 8,235.52, 12,349.54 and 3,553.31 is: 5,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.52 : 12,349.54 = 3,553.31 : x
  2. Step 2: Convert to fraction form
    8,235.52/12,349.54 = 3,553.31/x
  3. Step 3: Cross multiply
    8,235.52x = 12,349.54 × 3,553.31
  4. Step 4: Simplify right side
    8,235.52x = 43,881,743.98
  5. Step 5: Solve for x
    x = 43,881,743.98/8,235.52
  6. Step 6: Final answer
    x = 5,328.35

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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.