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Finding the Fourth Proportional to 61,943.56, 85,489.78 and 36,793.16

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Solution

The fourth proportional to 61,943.56, 85,489.78 and 36,793.16 is: 50,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,943.56 : 85,489.78 = 36,793.16 : x
  2. Step 2: Convert to fraction form
    61,943.56/85,489.78 = 36,793.16/x
  3. Step 3: Cross multiply
    61,943.56x = 85,489.78 × 36,793.16
  4. Step 4: Simplify right side
    61,943.56x = 3,145,439,153.90
  5. Step 5: Solve for x
    x = 3,145,439,153.90/61,943.56
  6. Step 6: Final answer
    x = 50,779.11

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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.