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Finding the Fourth Proportional to 57,425, 79,245.72 and 32,274.56

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Solution

The fourth proportional to 57,425, 79,245.72 and 32,274.56 is: 44,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,425 : 79,245.72 = 32,274.56 : x
  2. Step 2: Convert to fraction form
    57,425/79,245.72 = 32,274.56/x
  3. Step 3: Cross multiply
    57,425x = 79,245.72 × 32,274.56
  4. Step 4: Simplify right side
    57,425x = 2,557,620,744.88
  5. Step 5: Solve for x
    x = 2,557,620,744.88/57,425
  6. Step 6: Final answer
    x = 44,538.45

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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.