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Finding the Fourth Proportional to 57,196.60, 85,811.10 and 17,757.70

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Solution

The fourth proportional to 57,196.60, 85,811.10 and 17,757.70 is: 26,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,196.60 : 85,811.10 = 17,757.70 : x
  2. Step 2: Convert to fraction form
    57,196.60/85,811.10 = 17,757.70/x
  3. Step 3: Cross multiply
    57,196.60x = 85,811.10 × 17,757.70
  4. Step 4: Simplify right side
    57,196.60x = 1,523,807,770.47
  5. Step 5: Solve for x
    x = 1,523,807,770.47/57,196.60
  6. Step 6: Final answer
    x = 26,641.58

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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.