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Finding the Fourth Proportional to 19,251.63, 28,874.28 and 6,768.72

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Solution

The fourth proportional to 19,251.63, 28,874.28 and 6,768.72 is: 10,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.63 : 28,874.28 = 6,768.72 : x
  2. Step 2: Convert to fraction form
    19,251.63/28,874.28 = 6,768.72/x
  3. Step 3: Cross multiply
    19,251.63x = 28,874.28 × 6,768.72
  4. Step 4: Simplify right side
    19,251.63x = 195,441,916.52
  5. Step 5: Solve for x
    x = 195,441,916.52/19,251.63
  6. Step 6: Final answer
    x = 10,151.97

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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.