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Finding the Fourth Proportional to 57,880.44, 86,761.47 and 39,162.46

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Solution

The fourth proportional to 57,880.44, 86,761.47 and 39,162.46 is: 58,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,880.44 : 86,761.47 = 39,162.46 : x
  2. Step 2: Convert to fraction form
    57,880.44/86,761.47 = 39,162.46/x
  3. Step 3: Cross multiply
    57,880.44x = 86,761.47 × 39,162.46
  4. Step 4: Simplify right side
    57,880.44x = 3,397,792,598.42
  5. Step 5: Solve for x
    x = 3,397,792,598.42/57,880.44
  6. Step 6: Final answer
    x = 58,703.64

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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.