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Finding the Fourth Proportional to 11,765.58, 17,653.82 and 4,372.61

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Solution

The fourth proportional to 11,765.58, 17,653.82 and 4,372.61 is: 6,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.58 : 17,653.82 = 4,372.61 : x
  2. Step 2: Convert to fraction form
    11,765.58/17,653.82 = 4,372.61/x
  3. Step 3: Cross multiply
    11,765.58x = 17,653.82 × 4,372.61
  4. Step 4: Simplify right side
    11,765.58x = 77,193,181.60
  5. Step 5: Solve for x
    x = 77,193,181.60/11,765.58
  6. Step 6: Final answer
    x = 6,560.94

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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.