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Finding the Fourth Proportional to 57,175.80, 85,770.10 and 17,732.60

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Solution

The fourth proportional to 57,175.80, 85,770.10 and 17,732.60 is: 26,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,175.80 : 85,770.10 = 17,732.60 : x
  2. Step 2: Convert to fraction form
    57,175.80/85,770.10 = 17,732.60/x
  3. Step 3: Cross multiply
    57,175.80x = 85,770.10 × 17,732.60
  4. Step 4: Simplify right side
    57,175.80x = 1,520,926,875.26
  5. Step 5: Solve for x
    x = 1,520,926,875.26/57,175.80
  6. Step 6: Final answer
    x = 26,600.88

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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.