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Finding the Fourth Proportional to 64,016.78, 88,343.15 and 35,336.43

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Solution

The fourth proportional to 64,016.78, 88,343.15 and 35,336.43 is: 48,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,016.78 : 88,343.15 = 35,336.43 : x
  2. Step 2: Convert to fraction form
    64,016.78/88,343.15 = 35,336.43/x
  3. Step 3: Cross multiply
    64,016.78x = 88,343.15 × 35,336.43
  4. Step 4: Simplify right side
    64,016.78x = 3,121,731,359.27
  5. Step 5: Solve for x
    x = 3,121,731,359.27/64,016.78
  6. Step 6: Final answer
    x = 48,764.27

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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.