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Finding the Fourth Proportional to 57,745.89, 86,506.65 and 32,708.79

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Solution

The fourth proportional to 57,745.89, 86,506.65 and 32,708.79 is: 48,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.89 : 86,506.65 = 32,708.79 : x
  2. Step 2: Convert to fraction form
    57,745.89/86,506.65 = 32,708.79/x
  3. Step 3: Cross multiply
    57,745.89x = 86,506.65 × 32,708.79
  4. Step 4: Simplify right side
    57,745.89x = 2,829,527,848.45
  5. Step 5: Solve for x
    x = 2,829,527,848.45/57,745.89
  6. Step 6: Final answer
    x = 48,999.64

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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.