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Finding the Fourth Proportional to 1,812.83, 2,500.75 and 1,369.96

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Solution

The fourth proportional to 1,812.83, 2,500.75 and 1,369.96 is: 1,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.83 : 2,500.75 = 1,369.96 : x
  2. Step 2: Convert to fraction form
    1,812.83/2,500.75 = 1,369.96/x
  3. Step 3: Cross multiply
    1,812.83x = 2,500.75 × 1,369.96
  4. Step 4: Simplify right side
    1,812.83x = 3,425,917.79
  5. Step 5: Solve for x
    x = 3,425,917.79/1,812.83
  6. Step 6: Final answer
    x = 1,889.82

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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.