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Finding the Fourth Proportional to 57,906.29, 79,919.13 and 35,258.54

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Solution

The fourth proportional to 57,906.29, 79,919.13 and 35,258.54 is: 48,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,906.29 : 79,919.13 = 35,258.54 : x
  2. Step 2: Convert to fraction form
    57,906.29/79,919.13 = 35,258.54/x
  3. Step 3: Cross multiply
    57,906.29x = 79,919.13 × 35,258.54
  4. Step 4: Simplify right side
    57,906.29x = 2,817,831,924.87
  5. Step 5: Solve for x
    x = 2,817,831,924.87/57,906.29
  6. Step 6: Final answer
    x = 48,661.93

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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.