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Finding the Fourth Proportional to 18,904.54, 28,381.92 and 16,148.92

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Solution

The fourth proportional to 18,904.54, 28,381.92 and 16,148.92 is: 24,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.54 : 28,381.92 = 16,148.92 : x
  2. Step 2: Convert to fraction form
    18,904.54/28,381.92 = 16,148.92/x
  3. Step 3: Cross multiply
    18,904.54x = 28,381.92 × 16,148.92
  4. Step 4: Simplify right side
    18,904.54x = 458,337,355.53
  5. Step 5: Solve for x
    x = 458,337,355.53/18,904.54
  6. Step 6: Final answer
    x = 24,244.83

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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.