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Finding the Fourth Proportional to 7,917.66, 11,876.48 and 3,755.40

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Solution

The fourth proportional to 7,917.66, 11,876.48 and 3,755.40 is: 5,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.66 : 11,876.48 = 3,755.40 : x
  2. Step 2: Convert to fraction form
    7,917.66/11,876.48 = 3,755.40/x
  3. Step 3: Cross multiply
    7,917.66x = 11,876.48 × 3,755.40
  4. Step 4: Simplify right side
    7,917.66x = 44,600,932.99
  5. Step 5: Solve for x
    x = 44,600,932.99/7,917.66
  6. Step 6: Final answer
    x = 5,633.10

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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.