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Finding the Fourth Proportional to 61,235.43, 91,825.45 and 21,793.59

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Solution

The fourth proportional to 61,235.43, 91,825.45 and 21,793.59 is: 32,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,235.43 : 91,825.45 = 21,793.59 : x
  2. Step 2: Convert to fraction form
    61,235.43/91,825.45 = 21,793.59/x
  3. Step 3: Cross multiply
    61,235.43x = 91,825.45 × 21,793.59
  4. Step 4: Simplify right side
    61,235.43x = 2,001,206,154.38
  5. Step 5: Solve for x
    x = 2,001,206,154.38/61,235.43
  6. Step 6: Final answer
    x = 32,680.53

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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.