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Finding the Fourth Proportional to 3,351.84, 4,625.82 and 1,935.78

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Solution

The fourth proportional to 3,351.84, 4,625.82 and 1,935.78 is: 2,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.84 : 4,625.82 = 1,935.78 : x
  2. Step 2: Convert to fraction form
    3,351.84/4,625.82 = 1,935.78/x
  3. Step 3: Cross multiply
    3,351.84x = 4,625.82 × 1,935.78
  4. Step 4: Simplify right side
    3,351.84x = 8,954,569.84
  5. Step 5: Solve for x
    x = 8,954,569.84/3,351.84
  6. Step 6: Final answer
    x = 2,671.54

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Double scale
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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.