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Finding the Fourth Proportional to 57,696, 79,622.40 and 35,335.68

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Solution

The fourth proportional to 57,696, 79,622.40 and 35,335.68 is: 48,764.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,696 : 79,622.40 = 35,335.68 : x
  2. Step 2: Convert to fraction form
    57,696/79,622.40 = 35,335.68/x
  3. Step 3: Cross multiply
    57,696x = 79,622.40 × 35,335.68
  4. Step 4: Simplify right side
    57,696x = 2,813,511,647.23
  5. Step 5: Solve for x
    x = 2,813,511,647.23/57,696
  6. Step 6: Final answer
    x = 48,764.41

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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.