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Finding the Fourth Proportional to 7,916.76, 11,874.79 and 2,073.24

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Solution

The fourth proportional to 7,916.76, 11,874.79 and 2,073.24 is: 3,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.76 : 11,874.79 = 2,073.24 : x
  2. Step 2: Convert to fraction form
    7,916.76/11,874.79 = 2,073.24/x
  3. Step 3: Cross multiply
    7,916.76x = 11,874.79 × 2,073.24
  4. Step 4: Simplify right side
    7,916.76x = 24,619,289.62
  5. Step 5: Solve for x
    x = 24,619,289.62/7,916.76
  6. Step 6: Final answer
    x = 3,109.77

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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.