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Finding the Fourth Proportional to 63,708.72, 87,908.40 and 36,845.88

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Solution

The fourth proportional to 63,708.72, 87,908.40 and 36,845.88 is: 50,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,708.72 : 87,908.40 = 36,845.88 : x
  2. Step 2: Convert to fraction form
    63,708.72/87,908.40 = 36,845.88/x
  3. Step 3: Cross multiply
    63,708.72x = 87,908.40 × 36,845.88
  4. Step 4: Simplify right side
    63,708.72x = 3,239,062,357.39
  5. Step 5: Solve for x
    x = 3,239,062,357.39/63,708.72
  6. Step 6: Final answer
    x = 50,841.74

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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.