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Finding the Fourth Proportional to 57,769.84, 79,727.70 and 35,103.60

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Solution

The fourth proportional to 57,769.84, 79,727.70 and 35,103.60 is: 48,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.84 : 79,727.70 = 35,103.60 : x
  2. Step 2: Convert to fraction form
    57,769.84/79,727.70 = 35,103.60/x
  3. Step 3: Cross multiply
    57,769.84x = 79,727.70 × 35,103.60
  4. Step 4: Simplify right side
    57,769.84x = 2,798,729,289.72
  5. Step 5: Solve for x
    x = 2,798,729,289.72/57,769.84
  6. Step 6: Final answer
    x = 48,446.20

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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.