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Finding the Fourth Proportional to 4,321.72, 5,965.95 and 2,751.94

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Solution

The fourth proportional to 4,321.72, 5,965.95 and 2,751.94 is: 3,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.72 : 5,965.95 = 2,751.94 : x
  2. Step 2: Convert to fraction form
    4,321.72/5,965.95 = 2,751.94/x
  3. Step 3: Cross multiply
    4,321.72x = 5,965.95 × 2,751.94
  4. Step 4: Simplify right side
    4,321.72x = 16,417,936.44
  5. Step 5: Solve for x
    x = 16,417,936.44/4,321.72
  6. Step 6: Final answer
    x = 3,798.94

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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.