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Finding the Fourth Proportional to 2,114.30, 2,917.46 and 1,169.96

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Solution

The fourth proportional to 2,114.30, 2,917.46 and 1,169.96 is: 1,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.30 : 2,917.46 = 1,169.96 : x
  2. Step 2: Convert to fraction form
    2,114.30/2,917.46 = 1,169.96/x
  3. Step 3: Cross multiply
    2,114.30x = 2,917.46 × 1,169.96
  4. Step 4: Simplify right side
    2,114.30x = 3,413,311.50
  5. Step 5: Solve for x
    x = 3,413,311.50/2,114.30
  6. Step 6: Final answer
    x = 1,614.39

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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.