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Finding the Fourth Proportional to 7,912.75, 11,874.95 and 3,752.77

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Solution

The fourth proportional to 7,912.75, 11,874.95 and 3,752.77 is: 5,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.75 : 11,874.95 = 3,752.77 : x
  2. Step 2: Convert to fraction form
    7,912.75/11,874.95 = 3,752.77/x
  3. Step 3: Cross multiply
    7,912.75x = 11,874.95 × 3,752.77
  4. Step 4: Simplify right side
    7,912.75x = 44,563,965.11
  5. Step 5: Solve for x
    x = 44,563,965.11/7,912.75
  6. Step 6: Final answer
    x = 5,631.92

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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.