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Finding the Fourth Proportional to 57,920.68, 79,906.79 and 35,241.49

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Solution

The fourth proportional to 57,920.68, 79,906.79 and 35,241.49 is: 48,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.68 : 79,906.79 = 35,241.49 : x
  2. Step 2: Convert to fraction form
    57,920.68/79,906.79 = 35,241.49/x
  3. Step 3: Cross multiply
    57,920.68x = 79,906.79 × 35,241.49
  4. Step 4: Simplify right side
    57,920.68x = 2,816,034,164.51
  5. Step 5: Solve for x
    x = 2,816,034,164.51/57,920.68
  6. Step 6: Final answer
    x = 48,618.80

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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.