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Finding the Fourth Proportional to 64,028.40, 88,361.40 and 35,739.36

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Solution

The fourth proportional to 64,028.40, 88,361.40 and 35,739.36 is: 49,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,028.40 : 88,361.40 = 35,739.36 : x
  2. Step 2: Convert to fraction form
    64,028.40/88,361.40 = 35,739.36/x
  3. Step 3: Cross multiply
    64,028.40x = 88,361.40 × 35,739.36
  4. Step 4: Simplify right side
    64,028.40x = 3,157,979,884.70
  5. Step 5: Solve for x
    x = 3,157,979,884.70/64,028.40
  6. Step 6: Final answer
    x = 49,321.55

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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.