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Finding the Fourth Proportional to 4,612.94, 6,917.79 and 2,855.24

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Solution

The fourth proportional to 4,612.94, 6,917.79 and 2,855.24 is: 4,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.94 : 6,917.79 = 2,855.24 : x
  2. Step 2: Convert to fraction form
    4,612.94/6,917.79 = 2,855.24/x
  3. Step 3: Cross multiply
    4,612.94x = 6,917.79 × 2,855.24
  4. Step 4: Simplify right side
    4,612.94x = 19,751,916.13
  5. Step 5: Solve for x
    x = 19,751,916.13/4,612.94
  6. Step 6: Final answer
    x = 4,281.85

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1.5x scale

Why These Related Problems?

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