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Finding the Fourth Proportional to 64,286.64, 88,714.98 and 35,992.80

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Solution

The fourth proportional to 64,286.64, 88,714.98 and 35,992.80 is: 49,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,286.64 : 88,714.98 = 35,992.80 : x
  2. Step 2: Convert to fraction form
    64,286.64/88,714.98 = 35,992.80/x
  3. Step 3: Cross multiply
    64,286.64x = 88,714.98 × 35,992.80
  4. Step 4: Simplify right side
    64,286.64x = 3,193,100,532.14
  5. Step 5: Solve for x
    x = 3,193,100,532.14/64,286.64
  6. Step 6: Final answer
    x = 49,669.74

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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.