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Finding the Fourth Proportional to 18,151.97, 27,232.81 and 16,416.95

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Solution

The fourth proportional to 18,151.97, 27,232.81 and 16,416.95 is: 24,629.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.97 : 27,232.81 = 16,416.95 : x
  2. Step 2: Convert to fraction form
    18,151.97/27,232.81 = 16,416.95/x
  3. Step 3: Cross multiply
    18,151.97x = 27,232.81 × 16,416.95
  4. Step 4: Simplify right side
    18,151.97x = 447,079,502.92
  5. Step 5: Solve for x
    x = 447,079,502.92/18,151.97
  6. Step 6: Final answer
    x = 24,629.81

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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.