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Finding the Fourth Proportional to 57,436.96, 79,238.64 and 35,068

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Solution

The fourth proportional to 57,436.96, 79,238.64 and 35,068 is: 48,378.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,436.96 : 79,238.64 = 35,068 : x
  2. Step 2: Convert to fraction form
    57,436.96/79,238.64 = 35,068/x
  3. Step 3: Cross multiply
    57,436.96x = 79,238.64 × 35,068
  4. Step 4: Simplify right side
    57,436.96x = 2,778,740,627.52
  5. Step 5: Solve for x
    x = 2,778,740,627.52/57,436.96
  6. Step 6: Final answer
    x = 48,378.96

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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.