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Finding the Fourth Proportional to 64,725.56, 96,963.94 and 39,692.60

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Solution

The fourth proportional to 64,725.56, 96,963.94 and 39,692.60 is: 59,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,725.56 : 96,963.94 = 39,692.60 : x
  2. Step 2: Convert to fraction form
    64,725.56/96,963.94 = 39,692.60/x
  3. Step 3: Cross multiply
    64,725.56x = 96,963.94 × 39,692.60
  4. Step 4: Simplify right side
    64,725.56x = 3,848,750,884.84
  5. Step 5: Solve for x
    x = 3,848,750,884.84/64,725.56
  6. Step 6: Final answer
    x = 59,462.61

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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.