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Finding the Fourth Proportional to 60,491.92, 90,727.68 and 18,361.92

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Solution

The fourth proportional to 60,491.92, 90,727.68 and 18,361.92 is: 27,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.92 : 90,727.68 = 18,361.92 : x
  2. Step 2: Convert to fraction form
    60,491.92/90,727.68 = 18,361.92/x
  3. Step 3: Cross multiply
    60,491.92x = 90,727.68 × 18,361.92
  4. Step 4: Simplify right side
    60,491.92x = 1,665,934,401.95
  5. Step 5: Solve for x
    x = 1,665,934,401.95/60,491.92
  6. Step 6: Final answer
    x = 27,539.78

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1.5x scale

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.