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Finding the Fourth Proportional to 64,634.42, 96,951.64 and 20,261.41

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Solution

The fourth proportional to 64,634.42, 96,951.64 and 20,261.41 is: 30,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,634.42 : 96,951.64 = 20,261.41 : x
  2. Step 2: Convert to fraction form
    64,634.42/96,951.64 = 20,261.41/x
  3. Step 3: Cross multiply
    64,634.42x = 96,951.64 × 20,261.41
  4. Step 4: Simplify right side
    64,634.42x = 1,964,376,928.21
  5. Step 5: Solve for x
    x = 1,964,376,928.21/64,634.42
  6. Step 6: Final answer
    x = 30,392.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.