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Finding the Fourth Proportional to 57,458.58, 79,283.18 and 31,961.58

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Solution

The fourth proportional to 57,458.58, 79,283.18 and 31,961.58 is: 44,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,458.58 : 79,283.18 = 31,961.58 : x
  2. Step 2: Convert to fraction form
    57,458.58/79,283.18 = 31,961.58/x
  3. Step 3: Cross multiply
    57,458.58x = 79,283.18 × 31,961.58
  4. Step 4: Simplify right side
    57,458.58x = 2,534,015,540.42
  5. Step 5: Solve for x
    x = 2,534,015,540.42/57,458.58
  6. Step 6: Final answer
    x = 44,101.60

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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.