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Finding the Fourth Proportional to 67,302.46, 100,950.04 and 20,551.68

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Solution

The fourth proportional to 67,302.46, 100,950.04 and 20,551.68 is: 30,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,302.46 : 100,950.04 = 20,551.68 : x
  2. Step 2: Convert to fraction form
    67,302.46/100,950.04 = 20,551.68/x
  3. Step 3: Cross multiply
    67,302.46x = 100,950.04 × 20,551.68
  4. Step 4: Simplify right side
    67,302.46x = 2,074,692,918.07
  5. Step 5: Solve for x
    x = 2,074,692,918.07/67,302.46
  6. Step 6: Final answer
    x = 30,826.41

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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.