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Finding the Fourth Proportional to 57,911.67, 79,904.30 and 35,250.39

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Solution

The fourth proportional to 57,911.67, 79,904.30 and 35,250.39 is: 48,637.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,911.67 : 79,904.30 = 35,250.39 : x
  2. Step 2: Convert to fraction form
    57,911.67/79,904.30 = 35,250.39/x
  3. Step 3: Cross multiply
    57,911.67x = 79,904.30 × 35,250.39
  4. Step 4: Simplify right side
    57,911.67x = 2,816,657,561.43
  5. Step 5: Solve for x
    x = 2,816,657,561.43/57,911.67
  6. Step 6: Final answer
    x = 48,637.13

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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.