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Finding the Fourth Proportional to 57,676.11, 86,357.83 and 29,915.79

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Solution

The fourth proportional to 57,676.11, 86,357.83 and 29,915.79 is: 44,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,676.11 : 86,357.83 = 29,915.79 : x
  2. Step 2: Convert to fraction form
    57,676.11/86,357.83 = 29,915.79/x
  3. Step 3: Cross multiply
    57,676.11x = 86,357.83 × 29,915.79
  4. Step 4: Simplify right side
    57,676.11x = 2,583,462,364.60
  5. Step 5: Solve for x
    x = 2,583,462,364.60/57,676.11
  6. Step 6: Final answer
    x = 44,792.59

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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.