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Finding the Fourth Proportional to 62,629.44, 86,361.12 and 47,549.76

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Solution

The fourth proportional to 62,629.44, 86,361.12 and 47,549.76 is: 65,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,629.44 : 86,361.12 = 47,549.76 : x
  2. Step 2: Convert to fraction form
    62,629.44/86,361.12 = 47,549.76/x
  3. Step 3: Cross multiply
    62,629.44x = 86,361.12 × 47,549.76
  4. Step 4: Simplify right side
    62,629.44x = 4,106,450,529.33
  5. Step 5: Solve for x
    x = 4,106,450,529.33/62,629.44
  6. Step 6: Final answer
    x = 65,567.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.