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Finding the Fourth Proportional to 55,469.93, 83,213.96 and 30,521.70

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Solution

The fourth proportional to 55,469.93, 83,213.96 and 30,521.70 is: 45,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,469.93 : 83,213.96 = 30,521.70 : x
  2. Step 2: Convert to fraction form
    55,469.93/83,213.96 = 30,521.70/x
  3. Step 3: Cross multiply
    55,469.93x = 83,213.96 × 30,521.70
  4. Step 4: Simplify right side
    55,469.93x = 2,539,831,370.32
  5. Step 5: Solve for x
    x = 2,539,831,370.32/55,469.93
  6. Step 6: Final answer
    x = 45,787.54

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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.