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Finding the Fourth Proportional to 50,754.94, 76,126.93 and 13,318.74

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Solution

The fourth proportional to 50,754.94, 76,126.93 and 13,318.74 is: 19,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,754.94 : 76,126.93 = 13,318.74 : x
  2. Step 2: Convert to fraction form
    50,754.94/76,126.93 = 13,318.74/x
  3. Step 3: Cross multiply
    50,754.94x = 76,126.93 × 13,318.74
  4. Step 4: Simplify right side
    50,754.94x = 1,013,914,787.67
  5. Step 5: Solve for x
    x = 1,013,914,787.67/50,754.94
  6. Step 6: Final answer
    x = 19,976.67

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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.