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Finding the Fourth Proportional to 3,363.56, 4,640.98 and 1,965.48

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Solution

The fourth proportional to 3,363.56, 4,640.98 and 1,965.48 is: 2,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.56 : 4,640.98 = 1,965.48 : x
  2. Step 2: Convert to fraction form
    3,363.56/4,640.98 = 1,965.48/x
  3. Step 3: Cross multiply
    3,363.56x = 4,640.98 × 1,965.48
  4. Step 4: Simplify right side
    3,363.56x = 9,121,753.37
  5. Step 5: Solve for x
    x = 9,121,753.37/3,363.56
  6. Step 6: Final answer
    x = 2,711.93

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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.