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Finding the Fourth Proportional to 63,893.40, 95,851.62 and 21,771.15

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Solution

The fourth proportional to 63,893.40, 95,851.62 and 21,771.15 is: 32,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,893.40 : 95,851.62 = 21,771.15 : x
  2. Step 2: Convert to fraction form
    63,893.40/95,851.62 = 21,771.15/x
  3. Step 3: Cross multiply
    63,893.40x = 95,851.62 × 21,771.15
  4. Step 4: Simplify right side
    63,893.40x = 2,086,799,996.76
  5. Step 5: Solve for x
    x = 2,086,799,996.76/63,893.40
  6. Step 6: Final answer
    x = 32,660.65

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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.