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Finding the Fourth Proportional to 57,935.62, 79,957.86 and 35,287.90

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Solution

The fourth proportional to 57,935.62, 79,957.86 and 35,287.90 is: 48,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,935.62 : 79,957.86 = 35,287.90 : x
  2. Step 2: Convert to fraction form
    57,935.62/79,957.86 = 35,287.90/x
  3. Step 3: Cross multiply
    57,935.62x = 79,957.86 × 35,287.90
  4. Step 4: Simplify right side
    57,935.62x = 2,821,544,967.89
  5. Step 5: Solve for x
    x = 2,821,544,967.89/57,935.62
  6. Step 6: Final answer
    x = 48,701.39

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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.