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Finding the Fourth Proportional to 12,364.80, 18,565.73 and 10,704.05

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Solution

The fourth proportional to 12,364.80, 18,565.73 and 10,704.05 is: 16,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.80 : 18,565.73 = 10,704.05 : x
  2. Step 2: Convert to fraction form
    12,364.80/18,565.73 = 10,704.05/x
  3. Step 3: Cross multiply
    12,364.80x = 18,565.73 × 10,704.05
  4. Step 4: Simplify right side
    12,364.80x = 198,728,505.76
  5. Step 5: Solve for x
    x = 198,728,505.76/12,364.80
  6. Step 6: Final answer
    x = 16,072.11

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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.