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Finding the Fourth Proportional to 2,917.68, 4,027.50 and 2,843.16

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Solution

The fourth proportional to 2,917.68, 4,027.50 and 2,843.16 is: 3,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.68 : 4,027.50 = 2,843.16 : x
  2. Step 2: Convert to fraction form
    2,917.68/4,027.50 = 2,843.16/x
  3. Step 3: Cross multiply
    2,917.68x = 4,027.50 × 2,843.16
  4. Step 4: Simplify right side
    2,917.68x = 11,450,826.90
  5. Step 5: Solve for x
    x = 11,450,826.90/2,917.68
  6. Step 6: Final answer
    x = 3,924.63

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1.5x scale

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.