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Finding the Fourth Proportional to 57,393.81, 86,220.32 and 34,035.57

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Solution

The fourth proportional to 57,393.81, 86,220.32 and 34,035.57 is: 51,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.81 : 86,220.32 = 34,035.57 : x
  2. Step 2: Convert to fraction form
    57,393.81/86,220.32 = 34,035.57/x
  3. Step 3: Cross multiply
    57,393.81x = 86,220.32 × 34,035.57
  4. Step 4: Simplify right side
    57,393.81x = 2,934,557,566.60
  5. Step 5: Solve for x
    x = 2,934,557,566.60/57,393.81
  6. Step 6: Final answer
    x = 51,130.21

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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.