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Finding the Fourth Proportional to 64,039.92, 88,364.52 and 35,745.60

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Solution

The fourth proportional to 64,039.92, 88,364.52 and 35,745.60 is: 49,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,039.92 : 88,364.52 = 35,745.60 : x
  2. Step 2: Convert to fraction form
    64,039.92/88,364.52 = 35,745.60/x
  3. Step 3: Cross multiply
    64,039.92x = 88,364.52 × 35,745.60
  4. Step 4: Simplify right side
    64,039.92x = 3,158,642,786.11
  5. Step 5: Solve for x
    x = 3,158,642,786.11/64,039.92
  6. Step 6: Final answer
    x = 49,323.03

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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.