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Finding the Fourth Proportional to 2,815.83, 4,224.65 and 1,354.79

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Solution

The fourth proportional to 2,815.83, 4,224.65 and 1,354.79 is: 2,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.83 : 4,224.65 = 1,354.79 : x
  2. Step 2: Convert to fraction form
    2,815.83/4,224.65 = 1,354.79/x
  3. Step 3: Cross multiply
    2,815.83x = 4,224.65 × 1,354.79
  4. Step 4: Simplify right side
    2,815.83x = 5,723,513.57
  5. Step 5: Solve for x
    x = 5,723,513.57/2,815.83
  6. Step 6: Final answer
    x = 2,032.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.