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Finding the Fourth Proportional to 57,928, 79,940.64 and 32,777.52

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Solution

The fourth proportional to 57,928, 79,940.64 and 32,777.52 is: 45,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,928 : 79,940.64 = 32,777.52 : x
  2. Step 2: Convert to fraction form
    57,928/79,940.64 = 32,777.52/x
  3. Step 3: Cross multiply
    57,928x = 79,940.64 × 32,777.52
  4. Step 4: Simplify right side
    57,928x = 2,620,255,926.41
  5. Step 5: Solve for x
    x = 2,620,255,926.41/57,928
  6. Step 6: Final answer
    x = 45,232.98

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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.