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Finding the Fourth Proportional to 10,391.82, 14,340.63 and 5,676

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Solution

The fourth proportional to 10,391.82, 14,340.63 and 5,676 is: 7,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.82 : 14,340.63 = 5,676 : x
  2. Step 2: Convert to fraction form
    10,391.82/14,340.63 = 5,676/x
  3. Step 3: Cross multiply
    10,391.82x = 14,340.63 × 5,676
  4. Step 4: Simplify right side
    10,391.82x = 81,397,415.88
  5. Step 5: Solve for x
    x = 81,397,415.88/10,391.82
  6. Step 6: Final answer
    x = 7,832.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.