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Finding the Fourth Proportional to 64,321.86, 88,768.26 and 36,029.28

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Solution

The fourth proportional to 64,321.86, 88,768.26 and 36,029.28 is: 49,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,321.86 : 88,768.26 = 36,029.28 : x
  2. Step 2: Convert to fraction form
    64,321.86/88,768.26 = 36,029.28/x
  3. Step 3: Cross multiply
    64,321.86x = 88,768.26 × 36,029.28
  4. Step 4: Simplify right side
    64,321.86x = 3,198,256,494.65
  5. Step 5: Solve for x
    x = 3,198,256,494.65/64,321.86
  6. Step 6: Final answer
    x = 49,722.70

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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.