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Finding the Fourth Proportional to 57,427.40, 79,251.53 and 34,770.54

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Solution

The fourth proportional to 57,427.40, 79,251.53 and 34,770.54 is: 47,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,427.40 : 79,251.53 = 34,770.54 : x
  2. Step 2: Convert to fraction form
    57,427.40/79,251.53 = 34,770.54/x
  3. Step 3: Cross multiply
    57,427.40x = 79,251.53 × 34,770.54
  4. Step 4: Simplify right side
    57,427.40x = 2,755,618,493.93
  5. Step 5: Solve for x
    x = 2,755,618,493.93/57,427.40
  6. Step 6: Final answer
    x = 47,984.39

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1.5x scale

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.