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Finding the Fourth Proportional to 18,954.59, 28,376.82 and 11,032.92

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Solution

The fourth proportional to 18,954.59, 28,376.82 and 11,032.92 is: 16,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.59 : 28,376.82 = 11,032.92 : x
  2. Step 2: Convert to fraction form
    18,954.59/28,376.82 = 11,032.92/x
  3. Step 3: Cross multiply
    18,954.59x = 28,376.82 × 11,032.92
  4. Step 4: Simplify right side
    18,954.59x = 313,079,184.91
  5. Step 5: Solve for x
    x = 313,079,184.91/18,954.59
  6. Step 6: Final answer
    x = 16,517.33

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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.