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Finding the Fourth Proportional to 52,960.59, 79,440.81 and 13,517.70

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Solution

The fourth proportional to 52,960.59, 79,440.81 and 13,517.70 is: 20,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,960.59 : 79,440.81 = 13,517.70 : x
  2. Step 2: Convert to fraction form
    52,960.59/79,440.81 = 13,517.70/x
  3. Step 3: Cross multiply
    52,960.59x = 79,440.81 × 13,517.70
  4. Step 4: Simplify right side
    52,960.59x = 1,073,857,037.34
  5. Step 5: Solve for x
    x = 1,073,857,037.34/52,960.59
  6. Step 6: Final answer
    x = 20,276.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.