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Finding the Fourth Proportional to 64,228.74, 88,635.90 and 35,934.42

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Solution

The fourth proportional to 64,228.74, 88,635.90 and 35,934.42 is: 49,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,228.74 : 88,635.90 = 35,934.42 : x
  2. Step 2: Convert to fraction form
    64,228.74/88,635.90 = 35,934.42/x
  3. Step 3: Cross multiply
    64,228.74x = 88,635.90 × 35,934.42
  4. Step 4: Simplify right side
    64,228.74x = 3,185,079,657.68
  5. Step 5: Solve for x
    x = 3,185,079,657.68/64,228.74
  6. Step 6: Final answer
    x = 49,589.63

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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.