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Finding the Fourth Proportional to 10,682.87, 14,741.60 and 5,902.76

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Solution

The fourth proportional to 10,682.87, 14,741.60 and 5,902.76 is: 8,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,682.87 : 14,741.60 = 5,902.76 : x
  2. Step 2: Convert to fraction form
    10,682.87/14,741.60 = 5,902.76/x
  3. Step 3: Cross multiply
    10,682.87x = 14,741.60 × 5,902.76
  4. Step 4: Simplify right side
    10,682.87x = 87,016,023.59
  5. Step 5: Solve for x
    x = 87,016,023.59/10,682.87
  6. Step 6: Final answer
    x = 8,145.38

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Why These Related Problems?

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