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Finding the Fourth Proportional to 67,432.56, 101,193.92 and 27,989.67

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Solution

The fourth proportional to 67,432.56, 101,193.92 and 27,989.67 is: 42,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,432.56 : 101,193.92 = 27,989.67 : x
  2. Step 2: Convert to fraction form
    67,432.56/101,193.92 = 27,989.67/x
  3. Step 3: Cross multiply
    67,432.56x = 101,193.92 × 27,989.67
  4. Step 4: Simplify right side
    67,432.56x = 2,832,384,426.81
  5. Step 5: Solve for x
    x = 2,832,384,426.81/67,432.56
  6. Step 6: Final answer
    x = 42,003.22

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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.