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Finding the Fourth Proportional to 64,321.91, 88,764.49 and 36,027.60

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Solution

The fourth proportional to 64,321.91, 88,764.49 and 36,027.60 is: 49,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,321.91 : 88,764.49 = 36,027.60 : x
  2. Step 2: Convert to fraction form
    64,321.91/88,764.49 = 36,027.60/x
  3. Step 3: Cross multiply
    64,321.91x = 88,764.49 × 36,027.60
  4. Step 4: Simplify right side
    64,321.91x = 3,197,971,539.92
  5. Step 5: Solve for x
    x = 3,197,971,539.92/64,321.91
  6. Step 6: Final answer
    x = 49,718.23

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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.