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Finding the Fourth Proportional to 38,754.50, 58,132.30 and 11,052.50

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Solution

The fourth proportional to 38,754.50, 58,132.30 and 11,052.50 is: 16,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,754.50 : 58,132.30 = 11,052.50 : x
  2. Step 2: Convert to fraction form
    38,754.50/58,132.30 = 11,052.50/x
  3. Step 3: Cross multiply
    38,754.50x = 58,132.30 × 11,052.50
  4. Step 4: Simplify right side
    38,754.50x = 642,507,245.75
  5. Step 5: Solve for x
    x = 642,507,245.75/38,754.50
  6. Step 6: Final answer
    x = 16,578.91

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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.