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Finding the Fourth Proportional to 3,366.34, 4,640.25 and 2,480.74

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Solution

The fourth proportional to 3,366.34, 4,640.25 and 2,480.74 is: 3,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.34 : 4,640.25 = 2,480.74 : x
  2. Step 2: Convert to fraction form
    3,366.34/4,640.25 = 2,480.74/x
  3. Step 3: Cross multiply
    3,366.34x = 4,640.25 × 2,480.74
  4. Step 4: Simplify right side
    3,366.34x = 11,511,253.79
  5. Step 5: Solve for x
    x = 11,511,253.79/3,366.34
  6. Step 6: Final answer
    x = 3,419.52

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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.