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Finding the Fourth Proportional to 57,796.44, 79,824.90 and 38,900.76

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Solution

The fourth proportional to 57,796.44, 79,824.90 and 38,900.76 is: 53,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,796.44 : 79,824.90 = 38,900.76 : x
  2. Step 2: Convert to fraction form
    57,796.44/79,824.90 = 38,900.76/x
  3. Step 3: Cross multiply
    57,796.44x = 79,824.90 × 38,900.76
  4. Step 4: Simplify right side
    57,796.44x = 3,105,249,276.92
  5. Step 5: Solve for x
    x = 3,105,249,276.92/57,796.44
  6. Step 6: Final answer
    x = 53,727.35

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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.