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Finding the Fourth Proportional to 62,751.70, 94,139.20 and 20,634.14

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Solution

The fourth proportional to 62,751.70, 94,139.20 and 20,634.14 is: 30,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,751.70 : 94,139.20 = 20,634.14 : x
  2. Step 2: Convert to fraction form
    62,751.70/94,139.20 = 20,634.14/x
  3. Step 3: Cross multiply
    62,751.70x = 94,139.20 × 20,634.14
  4. Step 4: Simplify right side
    62,751.70x = 1,942,481,432.29
  5. Step 5: Solve for x
    x = 1,942,481,432.29/62,751.70
  6. Step 6: Final answer
    x = 30,955.04

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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.